​

CPC Definition - Subclass F16B

Printable version [PDF]
Last Updated Version: 2023.08
F16B
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)
Definition statement

This place covers:

Fastening elements for constructional parts per se, such as: clamps, clips, dowels, nails, staples, bolts without screw thread, pins, rivets, circlips, self-cutting screws, screws and bolts with thread, nuts, lock-nuts, threaded inserts, washers, hooks, suction cups

The connection of constructional elements such as key-type connections, shrinkage connections, joining of sheets and plates, connections of rods or tubes mutually or to flat surfaces at an angle, connections of constructional elements by sticking or pressing them together, joining of furniture, connections of constructional elements by a part of one element entering a hole in the other

The fastening elements or connection of elements in this group can be employed in multiple technical application fields. However, the focus is on the fastening element or the connection of elements itself.

Relationships with other classification places

Fastening elements in this subclass are caracterised by their constructional or functional aspects. Fastening elements which are specially adapted or designed for a specific technical application are generally rather classified in the specific technical application field.

References
Limiting references

This place does not cover:

Couplings transmitting rotation

F16D

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Horsehoe nails

A01L 7/10

Nails for footwear

A43B 23/20

Buckles, slide fasteners

A44B

Ornamental heads for nails, screws, or the like

A47G 3/00

Means, not using staples for attaching sheets temporalily together

B42F 3/00

Thumb-tacks

B43M 15/00

Fastening devices, e.g. clips for leather-stretching used in apparatus or machines for manufacturing or treating skins, hides, leathers or furs

C14B 17/08

Screws or bolts for railway sleepers

E01B 9/10

Rail joints

E01B 11/00

Connections for buildings

E04

For building constructions

E04B 1/38

Clamping means for down pipes for roof drainage

E04D 13/08

For hand railings

E04F 11/18

Fastening scaffolds against buildings

E04G 5/04

Scaffold couplings

E04G 7/00

For fencing

E04H 17/00

Bolts or fasteners for wings, specially for doors or windows

E05C

Locking bearings for parts moving only linearly

F16C 29/10

Hooks as integral parts of chains

F16G 17/00

Pipe joints

F16L

Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets

F16L 3/00

Clips for connecting hoses to rigid members

F16L 33/02

Magnetic holding devices

H01F 7/00

Electrostatic holding devices

H02N 13/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Manufacture of threaded fastening means

B21H, B21K, B23G

Welding

B23K

Screw mechanisms

F16H

Special rules of classification

As a general rule, multiple classifications can be attributed to one document. Symbols for inventive information and additional information are attributed to the corresponding fields.

If there are interesting functional features of an invention specially adapted for an application, at least a symbol for additional information in F16B should be given to this document.

Many documents describe a fastening element itself and a connection comprising the fastening element. If the focus of such a document lies e.g. on the fastening element itself, a symbol for invention information should be given for the fastening element and a further symbol for additional information should be given for the connection and vice versa according the focus.

In this main group, it is desirable to add the indexing codes of F16B 2200/00.

Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Connections using screw-thread elements

the connection is established by the screw-thread element

A screw acts on another element in order to establish a clamped connection

a connection using clamps

Devices for securing together, or preventing relative movement between, constructional elements or machine parts
Definition statement

This place covers:

Securing devices making use of shape memory alloys, hydraulic or pneumatic action or securing devices with marking colours or the like.

Special rules of classification

Groups F16B 2/00 - F16B 47/00 take precedence over group F16B 1/00.

Group F16B 1/00 is residual.

Means for securing elements of mechanisms after operation (means for bringing members to rest F16D)
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Means for bringing members to rest

F16D

Pipe couplings

F16L

Special rules of classification

Group F16B 1/02 is residual. Groups F16B 2/00 - F16B 47/00 take precedence.

disengaged by movement of the actuating member of the element (locking of actuators G05G, e.g. G05G 5/00)
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Locking of actuators

G05G

Special rules of classification

Group F16B 1/04 is residual. Groups F16B 2/00 - F16B 47/00 take precedence.

Friction-grip releasable fastenings (for cables or ropes, e.g. cleats F16G 11/00 ){(connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections F16B 7/00)}
Definition statement

This place covers:

Clamps, i.e. gripping elements where the gripping action is effected by positive means other than the inheretent resistance to deformation of the material of the clamp

Clips, i.e. gripping elements where the gripping action is effected solely by inherent resistance to deformation of the material of the clip

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Friction-grip releasable connections of rods or tubes

F16B 7/00

Friction-grip releasable fastenings for cables or ropes

F16G 11/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Means for preventing relative axial movement of a pin, spigot or the like, e.g. by snap in or locking by rotation features

F16B 21/00

{Means to increase the friction-coefficient}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media4.png

Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Paper clips

B42F 1/02

Informative references

Attention is drawn to the following places, which may be of interest for search:

Joining of furniture using clamps

F16B 12/20

Tools in form of clamps

B25B 5/00

internal, i.e. with spreading action (F16B 2/14 - F16B 2/18 take precedence)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media5.png

external, i.e. with contracting action (F16B 2/14 - F16B 2/18 take precedence)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media6.png

{using screw-thread elements (F16B 2/08 - F16B 2/12 take precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media7.png

using bands
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media8.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Clamps for containers

B65D

Clamps using bands for pipes

F16L

using pivoting jaws
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media9.png

using sliding jaws
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media10.png

using wedges
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media11.png

using rollers or balls {(clamps for rods or tubes telescopically engaged F16B 7/1409; used in anti-theft monitors, e.g. as used for articles of clothing in shops E05B 73/0017)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media12.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Clamps for rods or tubes telescopically engaged

F16B 7/1409

Clamps used in anti-theft monitors

E05B 73/0017

using cams, levers, eccentrics, or toggles {(for connections of rods or tubes engaged telescopically F16B 7/1418, F16B 7/1427, F16B 7/1454)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media13.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Clamps for connections of rods or tubes engaged telescopically

F16B 7/1418, F16B 7/1427, F16B 7/1454

{using levers}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media14.png

{with two stable positions}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media15.png

of resilient material, e.g. rubbery material {(F16B 2/205 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media16.png

{internal, i.e. with spreading action}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media17.png

{external, i.e. with contracting action}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media18.png

{the clip being released by tilting the clip or a part thereof to a position in which the axis of the openings surrounding the gripped elements is parallel to, or coincides with, the axis of the gripped elements}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media19.png

{of wire}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media20.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Clips for electric cable

H02G 3/0443

of pliable, non-resilient material, e.g. plant tie
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media21.png

Key-type connections; Keys (F16B 2/00 takes precedence; for rods or tubes mutually F16B 7/00)
Definition statement

This place covers:

Connections by keys type elements. The key having a geometric shape that engaged to corresponding geometric shapes in the elements to be connected.

media22.jpg

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Couplings of a member on a shaft by a longitudinal key

F16D 1/08

Informative references

Attention is drawn to the following places, which may be of interest for search:

Key-type connections for rods or tubes mutually

F16B 7/00

Releasable fastening devices locking by rotation

F16B 21/02, F16B 21/04

{the key being formed by solidification of injected material (joining of preformed parts by applying molten plastics B29C 65/40; non-disconnectible pipe joints obtained using a hardenable filler F16L 13/11)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media23.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Non-disconnectible pipe joints obtained using a hardenable filler

F16L 13/11

Informative references

Attention is drawn to the following places, which may be of interest for search:

Joining of preformed parst by applying molten plastics

B29C 65/40

using keys formed of wire or other flexible material, to be inserted through an opening giving access to grooves in the adjacent surfaces of the parts to be connected
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media24.png

using taper sleeves
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media25.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Tapered sleeves in couplings (with transmission of torque)

F16D 1/09

Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits (restricted to metal parts or objects B23P 11/02); Non-releasable friction-grip fastenings (F16B 2/00 takes precedence)
Definition statement

This place covers:

Shrinkage connections and force fits, i.e. a fastening between two parts which is achieved by friction after the parts are pushed together rather than by any other means of fastening.

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Shrinkage connections using members with a shape memory material

F16B 2200/77

Connections of a hub on a shaft by the elasticity of the hub

F16D 1/0858

Informative references

Attention is drawn to the following places, which may be of interest for search:

Shrinkage connections of metal parts or objects (process)

B23P 11/02

{engaging or disengaging by means of fluid pressure}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media26.png

References
Limiting references

This place does not cover:

Couplings for attaching a member on a shaft with a clamping hub with radial clamping due to deformation of a resilient body or a body of fluid

F16D 1/0805

{Press fits, force fits, interference fits, i.e. fits without heat or chemical treatment (F16B 4/002 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media27.png

{Shrinkage connections, e.g. assembled with the parts being at different temperature}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media28.png

{using heat-recoverable, i.e. shrinkable, sleeves}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media29.png

Joining sheets or plates {, e.g. panels,} to one another or to strips or bars parallel to them ({F16B 17/00 takes precedence;} by sticking together F16B 11/00; dowel connections F16B 13/00; pins, including deformable elements F16B 19/00; covering of walls E04F 13/00; fastening signs, plates, panels or boards to a supporting structure, fastening readily-detachable elements, e.g. letters to signs, plates, panels, or boards, G09F 7/00)
Definition statement

This place covers:

Joining of sheets and plates to one another or to strips and bars.

The focus lies on how the sheets or plates are connected and not on the fastening element itself.

References
Limiting references

This place does not cover:

Joining sheets by sticking together

F16B 11/00

Pin and hole connections involving plastic deformation

F16B 17/00

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Covering of walls

E04F 13/00

Covering of floors

E04F 15/00

Joining fastening signes, panels or boards to a supporting structure

G09F 7/18

Informative references

Attention is drawn to the following places, which may be of interest for search:

Joining sheets by dowel connections

F16B 13/00

Joining sheets by pins, including deformable elements

F16B 19/00

Metall working

B21D

Turning, boring

B23B

Joining of plastic sheets

B29C 66/40

Joining of automotive trim parts

B60R 13/0206

Special rules of classification

The groups

Fastening of honeycomb panels F16B 5/01,

Fastening of abutting sheets or plates F16B 5/0004

take precedence over the remaining subgroups in F16B 5/00

{a tongue on the edge of one sheet, plate or panel co-operating with a groove in the edge of another sheet, plate or panel}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media30.png

{with snap action}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media31.png

{both sheets, plates or panels having a groove, e.g. with strip-type connector}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media32.png

{the sheets, plates or panels having holes, e.g. for dowel- type connections}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media33.png

{using I-shaped connectors (with flanges moving towards each other F16B 5/0068)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media34.png

References
Limiting references

This place does not cover:

Using I-shaped connectors with flanges moving towards each other

F16B 5/0068

{and using hook and slot or keyhole-type connections}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media35.png

{and using C-shaped clamps}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media36.png

{and using interlocking keys of circular, square, rectangular or like shape}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media37.png

{hinge-like}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media38.png

{the interlocking key acting as a dovetail-type key}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media39.png

{and using ring-shaped clamps}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media40.png

{and using C-shaped clamps}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media41.png

{and using I-shaped clamps with flanges moving towards each other}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media42.png

{and using screw-thread}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media43.png

{and using expanding clamps}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media44.png

{by a rotating or sliding and rotating movement}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media45.png

{with locking means moving substantially perpendicular to the main plane, e.g. pins, screws}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media46.png

{with locking means rotating about an axis parallel to the main plane and perpendicular to the abutting edge, e.g. screw, bayonet}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media47.png

{by using permanent deformation}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media48.png

References
Limiting references

This place does not cover:

Hemming of sheet metal

B21D 39/02

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Hemming connections in vehicle doors

B60J 5/0469

Hemming connections in car bodies

B62D 27/026

by means of fastening elements specially adapted for honeycomb panels
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media49.png

by means of fastening members using screw-thread ({F16B 5/0004 takes precedence}; construction of screw-threaded connections F16B 25/00 - F16B 39/00)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media50.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Construction of screw-threaded connections

F16B 25/00 - F16B 39/00

{using panel fasteners, i.e. permanent attachments allowing for quick assembly}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media51.png

{the position of the plates to be connected being adjustable}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media52.png

{allowing for adjustment parallel to the plane of the plates}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media53.png

{allowing for adjustment perpendicular to the plane of the plates}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media54.png

{with the possibility for the connection to absorb deformation, e.g. thermal or vibrational}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media55.png

{specially designed to compensate for misalignement or to eliminate unwanted play}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media56.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Bolts or sleeves for positioning machine parts

F16B 19/02

{using resiliently deformable sleeves, grommets or inserts (F16B 43/001 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media57.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Grommet type mountings

F16F 1/3732

{using springs}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media58.png

{the screw-threaded element having at least two axially separated threaded portions (F16B 5/0283 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media59.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Fasteners for adjustable coverings in ceilings

E04F 13/0805

{with an externally threaded sleeve around the neck or the head of the screw-threaded element for adjustably fastening a plate or frame or the like to a fixed element}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media60.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Threaded inserts

F16B 37/122

{the threaded element being driven through the edge of a sheet plate with its axis in the plane of the plate}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media61.png

by means of riveting (rivets F16B 19/04)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media62.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Rivets

F16B 19/04

Riveting process

B21J

Riveting of plastic parts with separate rivets

B29C 65/606

{without the use of separate rivets}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media63.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Connection of multiple plates by means of plastic deformation

F16B 17/006

Riveting of plastic parts without the use of separate rivets

B29C 65/606

by means of clamps or clips ({F16B 5/0004 takes precedence}; friction-grip releasable fastenings in general F16B 2/00)
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Friction-grip releasable fastenings in general

F16B 2/00

Clips in automotive industry

B60R 13/04, B60R 13/043

Special rules of classification

Generally at least two groups are attributed, one for the clamping or clipping connection and one for the fastening element itself.

{in angled relationship}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media64.png

{allowing for adjustment parallel or perpendicular to the plane of the sheets or plates}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media65.png

{fastened over the edges of the sheets or plates}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media66.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Releasable nuts

F16B 37/041

{the plates being arranged one on top of the other and in full close contact with each other}
Definition statement

This place covers:

media67.png

{the plates being one on top of the other and distanced from each other, e.g. by using protrusions to keep contact and distance}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media68.png

{at least one of the plates providing a raised structure, e.g. of the doghouse type, for connection with the clamps or clips of the other plate}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media69.png

{at least one of the sheets or plates having integrally formed or integrally connected snap-in-features}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media70.png

{Joining sheets or plates to strips or bars (F16B 5/0692 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media71.png

{joining flexible sheets to other sheets or plates or to strips or bars (tent fastenings E04H 15/64; coping elements for swimming pools with fixing means for sealing foil E04H 4/142; greenhouses of flexible synthetic material A01G 9/1407; end or aperture-closing arrangements or devices for sacks or bags B65D 33/16)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media72.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Greenhouses of flexible synthetic material

A01G 9/1407

Fastening means for tarpaulins on vehicles

B60J 7/104

End or apterture-closing arrangements or devices for sacks or bags

B65D 33/16

Coping elements for swimming pools with fixing means for sealing foil

E04H 4/142

Tent fastenings

E04H 15/64

by means of multiple interengaging protrusions on the surfaces, e.g. hooks, coils,
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media73.png

References
Limiting references

This place does not cover:

Fasteners of the touch and close type made integrally of plastics

A44B 18/0046

by means of welds or the like (welding B23K)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media74.png

References
Limiting references

This place does not cover:

Welding

B23K

by means of bayonet connections ({F16B 5/0092 takes precedence}; fastening devices locking by rotation F16B 21/02)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media75.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Fastening devices locking by rotation

F16B 21/02

Fastening devices with bayonnet catch

F16B 21/04

Fastening strips or bars to sheets or plates, e.g. rubber strips, decorative strips for motor vehicles, by means of clips (friction- grip releasable fastenings in general F16B 2/00; fastening rods or tubular parts to flat surfaces at an angle F16B 9/00)
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Fastening rods or tubular parts to flat surfaces at an angle

F16B 9/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Friction-grip releasable fastenings

F16B 2/00

{fastened over the edge(s) of the sheet(s) or plate(s)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media76.png

{Auxiliary fasteners specially designed for this purpose}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media77.png

{one of the auxiliary fasteners is comprising wire or sheet material or is made thereof}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media78.png

{at least one of the sheets, plates, bars or strips having integrally formed or integrally connected snap-in-features}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media79.png

{a strip with a C-or U-shaped cross section being fastened to a plate such that the fastening means remain invisible, e.g. the fastening being completely enclosed by the strip}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media80.png

Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections ({F16B 11/008, F16B 17/00 take precedence;} umbrella frames A45B 25/02; welding or soldering of connections B23K; vehicle connections in general B60D; railway couplings B61G; bicycle frames B62K; couplings for transmitting rotation F16D; couplings for tubes conveying fluids F16L)
Definition statement

This place covers:

Connections of rods and tubes or profiles mutually by clamping, clipping or screwed connections.

References
Limiting references

This place does not cover:

By sticking together tubular elements or rods in coaxial engagement

F16B 11/008

Pin and hole connections involving plastic deformation

F16B 17/00

Welding or soldering of connections

B23K

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Umbrella frames

A45B 25/02

Railway couplings

B61G

Bicycle frames

B62K

Couplings for transmitting rotation

F16D

Couplings for tubes conveying fluids

F16L

Mounting of solar heat systems

F24S 25/00

If connections relate to a specific application field, they should be generally classified in the application field.

Informative references

Attention is drawn to the following places, which may be of interest for search:

Vehicle connections in general

B60F

with conical parts
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media81.png

{with the expansion of an element inside the tubes due to axial movement towards a wedge or conical element (for rods or tubes telescopically engaged F16B 7/1463)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media82.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Connections using a wedge or conical element for telescopically engaged rods or tubes

F16B 7/1463

Clamping or clipping connections (friction-grip releasable fastenings in general F16B 2/00)
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Locking of pivots

F16C 11/10

Informative references

Attention is drawn to the following places, which may be of interest for search:

Friction-grip releasable fastenings in general

F16B 2/00

{for tubes using the innerside thereof (F16B 7/025 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media83.png

{with a locking element, e.g. pin, ball or pushbutton, engaging in a hole in the wall of at least one tube}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media84.png

{for rods or for tubes without using the innerside thereof}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media85.png

{for rods or tubes being in parallel relationship}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media86.png

References
Limiting references

This place does not cover:

Cables

F16G 11/00

{for tubes using the innerside thereof (F16B 7/025 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media87.png

{the tubes being drawn towards each other (F16B 7/0473 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media88.png

{by rotating an eccenter-mechanism}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media89.png

{by a screw-threaded stud with a conical tip acting on an inclined surface}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media90.png

{with hook-like parts gripping, e.g. by expanding, behind the flanges of a profile}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media91.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

with sliding nuts see

F16B 7/187

{forming an abutting connection of at least one tube}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media92.png

{forming a crossed-over connection}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media93.png

Turnbuckles (for cables, ropes, or wire F16G 11/12)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media94.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Turnbuckles for cables, ropes or wire

F16G 11/12

Special rules of classification

The class is directed towards connections of rods or tubes by turnbuckles.

However, if it is unclear, whether the turnbuckle is for rods or tubes or not, the document should also be classified in this group.

Telescoping systems ({for vertically adjustable chairs A47C 3/20; telescopic steering columns B62D 1/18}; for scaffolding E04G 25/04; {telescopic masts, poles or the like E04H 12/182; telescopic door or window holders E05C 17/30}; telescope props for mining E21D 15/14 - E21D 15/46; stands or trestles as supports for apparatus or articles placed thereon {F16M 11/26})
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Vertically adjustable chairs

A47C 3/20

Vacuum cleaner

A47L 9/244

Telescopic steering columns

B62D 1/18

Telescopic scaffolding elements

E04G 25/04

Telescopic masts, poles or the like

E04H 12/182

Telescopic door or window holders

E05C 17/30

Telescope props for mining

E21D 15/14

Stands or trestles as support for apparatus or articles placed thereon

F16M 11/26

{locking in discrete positions, e.g. in extreme extended position}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media95.png

locking in intermediate {non-discrete} positions {(the rod or tube being locked by a tilting clip F16B 2/246)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Locking by a titling clip

F16B 2/246

{with balls or rollers urged by an axial displacement of a wedge or a conical member}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media96.png

{with a clamping collar or two split clamping rings tightened by a screw or a cammed latch member}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media97.png

{with cammed or eccentrical surfaces co-operating by relative rotation of the telescoping members or by rotation of an external collar}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media98.png

{with rollers or balls}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media99.png

{with a rubber bushing gripping inside the outer telescoping member by a radial expansion due to its axial compression (F16B 7/1463 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media100.png

{with a clamp locking the telescoping members by swinging a handle provided with a locking cam (F16B 7/1418 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media101.png

{with the expansion of an element inside the outer telescoping member due to the axial movement towards a wedge or a conical member}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media102.png

{with a clamping screw perpendicular to the axis of the telescoping members}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media103.png

{with a gripping helical spring}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media104.png

{with a sleeve or ring having a tapered or conical surface (F16B 7/1463 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media105.png

using screw-thread elements {(F16B 7/025 takes precedence; for turnbuckles F16B 7/06)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media106.png

References
Limiting references

This place does not cover:

Connections by turnbuckles

F16B 7/06

Special rules of classification

If screws actuate a clamping connection, group F16B 7/04 takes precedence

{for coaxial connections of two rods or tubes}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media107.png

{with a node element}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media108.png

{with sliding nuts or other additional connecting members for joining profiles provided with grooves or channels (channel nuts per se F16B 37/045)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media109.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Channel nuts

F16B 37/045

using bayonet connections
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media110.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Releasable fastening devices with bayonet catch

F16B 21/04

using hooks or like elements
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media111.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Angled connections of rods or tubes with hook-like parts gripping behind the flanges of a profile

F16B 7/0473

Connections of rods or tubular parts to flat surfaces at an angle ({with a part of or on one member entering a hole in the other and involving plastic deformation F16B 17/006;} friction-grip releasable fastenings in general F16B 2/00; making press-fit connections B23P 11/00, B23P 19/00; fluid-tight connecting of pipes to reservoirs, sheets, or the like F16L, e.g. joining pipes {or rods conveying fluids} to walls F16L 41/00)
Definition statement

This place covers:

Non-torque transmitting connections of rods or tubular parts to flat surfaces at an angle, i.e. the rods or tubular parts are non-parallel with respect to the flat surfaces. The rods or tubular parts can be connected perpendicularly to the flat surfaces. The connections can involve an intermediate member.

The rods or tubular parts and the flat surfaces are constructional elements or machine parts.

The rods or tubular parts are elongated elements, of any cross-section, that do not convey fluids. Rods or tubular elements may be flexible, but not flaccid, e.g. a cord is not a rod or tubular element in the sense of F16B 9/00.

Flat surfaces are surfaces that are planar at least locally around the connection location.

Relationships with other classification places

Connections of rods to rods are classified in F16B 7/00 and subgroups.

Connections of rods parallel to flat surfaces are classified in F16B 5/00 and subgroups.

Connections of cables or cords to other objects are classified in F16G 11/00 and subgroups.

References
Limiting references

This place does not cover:

Connections of rods to flat surfaces whereby a part of or on one member enters a hole in the other member and involving plastic deformation

F16B 17/006

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Fluid-tight connections of pipes to reservoirs, sheets, ot the like

F16L

Connections of pipes to walls

F16L 41/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Friction-grip releasable fastenings in general

F16B 2/00

Making press-fit connections

B23P 11/00, B23P 19/00

Special rules of classification

In this main group, it is desirable to add the indexing codes of F16B 2200/00.

References F16B 2/00, B23P 11/00, B23P 19/00, F16L, F16L 41/00 are non-limiting in the main group F16B 9/00. CPC will be updated/corrected once this inconsistency is resolved.

{Welded or bonded connections}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media391.png

Detachable connections {(F16B 9/05 – F16B 9/09 take precedence)}
Definition statement

This place covers:

Connections that can be detached without breaking any part.

Detachable and releasable are synonyms.

References
Limiting references

This place does not cover:

Connections by way of an intermediate member

F16B 9/05

Connections involving plastic or elastic deformation

F16B 9/07

Connections where rods and flat surfaces interengage by projections and mating sockets

F16B 9/09

{the intermediate member having a radial flange secured to the flat surface}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media394.png

{the intermediate member being threaded}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media395.png

{the intermediate member extending through the flat surface; the rod or tubular part extending through the flat surface}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media396.png

{the intermediate member being secured to the rod by transverse fasteners}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media397.png

{involving plastic or elastic deformation when assembling (involving plastic deformation with a part of or on one member entering a hole in the other F16B 17/006)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media392.png

References
Limiting references

This place does not cover:

Connections with a part of or on one member entering a hole in the other and involving plastic deformation

F16B 17/006

Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Elastic deformation

The parts recover their initial shape after deformation

Plastic deformation

The parts do not recover their initial shape after deformation

{rods and flat surfaces interengaging by projections and mating sockets}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media393.jpeg

Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding (non-electric welding in general B23K; methods of using adhesives independently of the form of the surfaces joined C09J 5/00)
Definition statement

This place covers:

Connections of constructional elements by glueing, cold pressure welding and by plastically deforming the elements.

References
Limiting references

This place does not cover:

Friction welding

B23K 20/00

Methods using adhesives independently of the form of the surfaces joined

C09J 5/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Welding in general

B23K

{by pressing the elements together so as to obtain plastic deformation (shrinkage connections, force fits F16B 4/00; pin-and-hole connections involving plastic deformation F16B 17/00)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media114.png

References
Limiting references

This place does not cover:

Force fits

F16B 4/00

Pin and hole connections involving plastic deformation

F16B 17/00

{by cold pressure welding}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media115.png

{by gluing (gluing of plastics material B29C 65/48)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media116.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Gluing of plastics material

B29C 65/48

Glueing composition

C09J, C08F

{of tubular elements or rods in coaxial engagement}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media117.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Connections by bonding in automotive superstructures

B62D 27/026

Glueing of couplings to shafts

F16D 1/068

Jointing of furniture or the like, e.g. hidden from exterior (F16B 2/00 - F16B 11/00 take precedence; fastening means per se F16B 13/00 - F16B 47/00; wood-working B27)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (WO2011065736)

media118.png

References
Limiting references

This place does not cover:

Groups in this subclass

F16B 2/00 - F16B 11/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Fastening means per se

F16B 13/00 - F16B 47/00

Wood-working

B27

Joints between panels and corner posts
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (DE20307683U).

media119.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Joining of strips or plates to one another or to strips or bars parallel to them

F16B 5/00

Horizontal connecting members adapted to receive and retain the edges of several panel elements

A47B 47/0025

Non-loosenable joints for non-metal furniture parts, e.g. glued
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (DE102004016551).

media120.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Connecting constructional elements by gluing

F16B 11/006

Non-loosenable joints for metal furniture parts
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (EP0639718):

media121.png

using pegs, bolts, tenons, clamps, clips, or the like (glued F16B 12/04; fastening means per se F16B 15/00 - F16B 47/00)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (DE202010016369U)

media122.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Glued

F16B 12/04

Fastening means per se

F16B 15/00 - F16B 47/00

using threaded bolts or screws
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Bolt and nut or screw connectors

F16B 19/00 - F16B 39/00

using self-tapping screws
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Screws that cut thread in the body into which they are screwed

F16B 25/00

using drawing bars
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (US2010322740).

media123.pngmedia124.png

using clamps, clips, wedges, sliding bolts, or the like
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (EP1530926).

media125.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Height adjustable shelving

A47B 57/26, A47B 57/54, A47B 57/56

{actuated by rotary motion}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (FR2927677).

media126.png

{with rotating excenters or wedges}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (US2010202852).

media127.png

{with rotating excenters or wedges acting on a head of a pin or screw}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (US4990020).

media128.png

{with engaging screw threads as securing means for limiting movement}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (EP1856417)

media129.png

using keyhole-shaped slots and pins
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (US2010258039).

media130.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Height adjustable shelving

A47B 57/22, A47B 57/50, A47B 57/52

using separate pins, dowels, or the like
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (US917433).

media131.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Dowels in general

F16B 13/00 - F16B 13/146

using snap-action elements
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (DE202009014811U).

media132.png

for metal furniture parts
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (DE10336968).

media133.png

using threaded bolts
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Bolt and nut or screw connectors

F16B 19/00 - F16B 39/00

using clamps, clips, wedges, sliding bolts, or the like
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (DE202009012657U).

media134.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Height adjustable shelving

A47B 57/26, A47B 57/54, A47B 57/56

using keyhole-shaped slots and pins
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (US2002153340).

media135.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Height adjustable shelving

A47B 57/22, A47B 57/50, A47B 57/52

using separate pins, dowels or the like
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (EP1508705).

media136.png

using snap-action elements
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (US2001044992).

media137.png

Joints for furniture tubing
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (FR1520757).

media138.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Connections of rods or tubes

F16B 7/00 - F16B 7/22

connecting furniture tubing to non-tubular parts {(connecting table tops to underframes A47B 13/003)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (US2011225802).

media139.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Connecting table tops to underframes

A47B 13/003

Leg joints; Corner joints
Definition statement

This place covers:

EP1464251, EP2243969.

Illustrative examples of subject matter classified in this group:

media140.png

media141.jpgmedia140.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Connections of tubes or rods

F16B 7/00

Non-metal corner connections
Definition statement

This place covers:

Illustrative examples of subject matter classified in this group (DE202006014679U, US7677830).

media143.jpgmedia144.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Connections of tubes or rods

F16B 7/00

Special rules of classification

This sub-group concerns joints between two or more NON-METAL connecting elements whose connector or liaison part is non-metal or metallic.

Non-metal leg connections (F16B 12/46 takes precedence)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (DE202009017363U, DE202010017070).

media145.jpg

media146.png

References
Limiting references

This place does not cover:

Non-metal corner connections

F16B 12/46

Informative references

Attention is drawn to the following places, which may be of interest for search:

Connections of tubes or rods

F16B 7/00

Special rules of classification

This sub-group concerns joints between two or more NON-METAL leg connecting elements whose connector or liaison part is non-metal or metal and includes the connection between table top or similar and leg(s).

Metal corner connections
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media147.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Connections of tubes or rods

F16B 7/00

Special rules of classification

This sub-group concerns joints between two or more METAL connecting elements whose connector or liaison part is non-metal or metal.

Metal leg connections (F16B 12/50 takes precedence)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media148.png

References
Limiting references

This place does not cover:

Metal corner connections

F16B 12/50

Informative references

Attention is drawn to the following places, which may be of interest for search:

Connections of tubes or rods

F16B 7/00

Special rules of classification

This sub-group concerns joints between two or more METAL leg connecting elements whose connector or liaison part is non-metal or metal and includes connections between table top or similar and leg(s).

Fittings for bedsteads or the like
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (DE29500500U,

GB2413759).

media149.png

media150.jpg

Brackets for bedsteads; Coupling joints consisting of bolts or the like; Latches therefor
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (US2006195983).

media151.png

Tapered connectors for bed rails
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (FR875988, US3539211).

media152.jpgmedia153.png

Fittings for detachable side panels
Definition statement

This place covers:

Illustrative example of subject matter classified in this group (FR2699058). media154.png

Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose (nails F16B 15/00; self-locking pins or bolts in general, stud-and-socket releasable fastenings F16B 21/00; dowels or bolts for railroad sleepers E01B 9/00; ans means for anchoring structural elements or bulkheads specially adapted to foundation engineering E02D 5/74; bolts or dowels used while laying bricks or casting concrete sleepers E04B 1/38; setting anchoring bolts in shafts, tunnels or galleries E21D 20/00; anchoring bolts for shafts, tunnels or galleries E21D 21/00)
Definition statement

This place covers:

Dowels made e.g. of wood, metal or plastic.

Dowels in form of a solid rod.

Dowels having parts gripping it the hole, e.g. expanding sleeves or toggle mechanisms.

Dowels fastened by inserted an additional element.

Dowels fixed by a settable material.

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Connections in furniture using dowels

F16B 12/00

Self-locking pins or bolts in general, stud-and-socket releasable fastenings

F16B 21/00

Dowels or bolts for railroad sleepers

E01B 9/00

Means for anchoring structural elements or bulckheads specially adapted to foundation engineering

E02D 5/74

Bolts or dowels used while laying bricks or casting concrete sleepers

E04B 1/38

Dowels fixed by grouting

E21D 20/02

Anchoring bolts for shafts, tunnels or galleries

E21D 21/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Nails

F16B 15/00

Bolts without screw-thread and rivets

F16B 19/00

Dowels for insulation of walls and ceilings

E04F 13/0835

Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Dowel

Solid cylindrical rod, usually made of wood, plastic or metal that is usually inserted into a blind hole.

{with means for preventing rotation of the dowel}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media155.png

{self-cutting}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media156.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Self-cutting screws

F16B 25/00

{with a separate drilling bit attached to or surrounded by the dowel element}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media157.png

{with a drilling sleeve driven against a tapered or spherical plug}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media158.png

{formed in integral series but easily separable}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media159.png

in one piece with protrusions or ridges on the shaft
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media160.png

{of rolled sheet material}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media161.png

with parts gripping in the hole or behind the reverse side of the wall after inserting from the front ({F16B 13/002 and F16B 13/12 take precedence;} friction-grip releasable fastenings in general F16B 2/00)
References
Limiting references

This place does not cover:

Friction-grip releasable fastenings in general

F16B 2/00

{having axially compressing parts allowing the clamping of an object tightly to the wall}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media162.png

{of the buckling type}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media163.png

{fastened by extracting the screw, nail or the like}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media164.png

{fastened by extracting a separate expander-part, actuated by the screw, nail or the like}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media165.png

{expanded in two or more places}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media166.png

{by a toggle-mechanism}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media167.png

{with a wedging drive-pin}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media168.png

{with a locking element, e.g. sleeve, ring or key co-operating with a cammed or eccentrical surface of the dowel body}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media169.png

{with segments or fingers expanding or tilting into an undercut hole (F16B 13/0858 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media170.png

{with a deformable sleeve member driven against the abutting surface of the head of the bolt or of a plug}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media171.png

{with a drive-nail deflected by an inclined surface in the dowel body (nails with spreading shaft F16B 15/04)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media172.png

References
Limiting references

This place does not cover:

Nails with a spreading shaft

F16B 15/04

{with an expansible sleeve or dowel body driven against a tapered or spherical expander plug (F16B 13/004 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media173.png

{with prongs penetrating into the wall of the hole by a retractile movement of a threaded member}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media174.png

{with elastic discs or spring washers anchoring in the hole}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media175.png

{with split rings or wire between the threads of the dowel body or in grooves near a conical surface (F16B 13/0825 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media176.png

{with a locking element, e.g. wedge, key or ball moving along an inclined surface of the dowel body (F16B 13/0816, F16B 13/0825, F16B 13/0883 take precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media177.png

{made from a sheet-metal blank}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media178.png

{fastened by inserting a threaded element, e.g. screw or bolt (F16B 13/122, F16B 13/128 take precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media179.png

{fastened by inserting an unthreaded element, e.g. pin or nail (F16B 13/122, F16B 13/128 take precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media180.png

{with extending protrusions, e.g. discs, segments, ridges, fingers or tongues (F16B 13/122 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media181.png

{Fixing plugs in holes by the use of settable material}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media182.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Anchoring bolts by grouting

E21D 20/02

Informative references

Attention is drawn to the following places, which may be of interest for search:

Adhesives

C08F, C09J 1/00

{characterised by the composition of the setting material or mixture (F16B 13/143 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media183.png

{using frangible cartridges or capsules containing the setting components}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media184.png

{characterised by the shape or configuration or material of the frangible cartridges or capsules}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media185.png

{with a bag-shaped envelope or a tubular sleeve closed at one end, e.g. with a sieve-like sleeve, or with an expandable sheath}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media186.png

Nails; Staples (surgical staples A61B 17/064; manufacture of nails or staples B21G {; drawing-pins, thumb-tacks B43M 15/00}; railway spikes E01B 9/06)
Definition statement

This place covers:

Nails, i.e. pin shaped sharp objects made mainly of hard metal alloy and being used as a fastener

Staples, i.e. two pronged fasteners made of metal.

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Surgical staples

A61B 17/064

Thumb tacks

B43M 15/00

Railway spikes

E01B 9/06

Informative references

Attention is drawn to the following places, which may be of interest for search:

Manufacture of nails or staples

B21G

{with two nail points extending in opposite directions, in order to fix two workpieces together}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media187.png

{Staples}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media188.png

{Nail plates}
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Machines for driving in nail plates

B27F 7/15

Claw dowels for building structures

E04B 1/49

{only on the perimeter of the plate}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media189.png

{from the body of the plate}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media190.png

{with separate nails attached to the plate}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media191.png

{Coated nails or staples}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media192.png

with specially-shaped heads, e.g. with enlarged surfaces (ornaments for furniture A47B 95/04; removable ornamental heads for nails A47G 3/00)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media193.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Ornaments for furniture

A47B 95/04

Removable ornament heads for nails

A47G 3/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Fastening devices with markings, colours, indicators or the like

F16B 2200/95

Special rules of classification

References A47B 95/04 and A47G 3/00 are non-limiting in group F16B 15/02. CPC will be updated/corrected once this inconsistency is resolved in IPC.

with spreading shaft {(dowels with a drive-nail deflected by an inclined surface in the dowel body F16B 13/085)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media194.png

References
Limiting references

This place does not cover:

Dowels with a drive-nail deflected by an inclined surface in the dowel body

F16B 13/085

with barbs, e.g. for metal parts; Drive screws
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media195.png

formed in integral series but easily separable
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media196.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Bolts, screws or nuts formed in integral series

F16B 27/00

Arrangements for feeding screws or nuts

B25B 23/04

Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other {and involving plastic deformation} (riveting F16B 19/04)
Definition statement

This place covers:

Non-releasable connections of one element by entering a hole in a second element and subsequent plastic deformation.

Illustrative example of subject matter classified in this group.

media197.png

References
Limiting references

This place does not cover:

Rivets; Spigots or the like fastened by riveting

F16B 19/04

Informative references

Attention is drawn to the following places, which may be of interest for search:

Construction of pins, bolts or rivets

F16B 19/00

Means for preventing withdrawal of a pin, spigot or the like from its operative position, stud-and-socket releasable fastenings

F16B 21/00

{of rods or tubes mutually}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media198.png

{of rods or tubes to sheets or plates}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media199.png

{of sheets or plates mutually (joining sheets by riveting without the use of separate rivets F16B 5/045)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media200.png

References
Limiting references

This place does not cover:

Joining sheets by riveting without the use of separate rivets

F16B 5/045

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Joining of superposed plates by local deformation

B21D 39/031, B21D 39/038

Bolts without screw-thread; Pins, including deformable elements (in screwed connections F16B 29/00); Rivets (means for preventing withdrawal F16B 21/00)
Definition statement

This place covers:

Bolts without screw-thread, pins and rivets, such as solid rivets or blind rivets.

References
Limiting references

This place does not cover:

Means for preventing relative axial movement of a pin, spigot, shaft and the like

F16B 21/00

Screwed connection with deformation of nut or auxiliary member

F16B 29/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Riveting (process)

B21J 15/00

{Resiliently deformable pins (F16B 21/06 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media201.png

References
Limiting references

This place does not cover:

Dowels with elastic discs or spring washers

F16B 13/0875

{made in one piece (F16B 21/084 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media202.png

{with sealing means}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media203.png

References
Limiting references

This place does not cover:

Sealing of bolts and nuts

F16B 33/004

Sealing washers

F16B 43/001

Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media204.png

Rivets; Spigots or the like fastened by riveting (lead seals G09F 3/00)
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Lead seals

G09F 3/00

Bolts fastening by swaged-on collars (F16B 19/08 takes precedence)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media205.png

Solid rivets made in one piece
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media206.png

{Self-drilling rivets}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media207.png

{Self-piercing rivets}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media208.png

{Multi-part rivets}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media209.png

{fastened by a pull - mandrel or the like (F16B 19/109 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media210.png

{the pull-mandrel or the like being frangible}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media211.png

{with a sleeve or collar sliding over the hollow rivet body during the pulling operation}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media212.png

{the pull-mandrel or the like comprising a thread and being rotated with respect to the rivet, thereby mechanically expanding and fastening the rivet (nuts fastened by riveting F16B 37/067)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media213.png

References
Limiting references

This place does not cover:

Nuts fastened by riveting

F16B 37/067

{fastened by a drive-pin (F16B 19/109 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media214.png

References
Limiting references

This place does not cover:

Dowels fastened by inserting a screw, nail or the like

F16B 13/12

Releasable fastening devices with snap action with an additional locking element

F16B 21/065

{Temporary rivets, e.g. with a spring-loaded pin (special clamping devices for workpieces to be riveted together, e.g. operating through the rivet holes B21J 15/42; hand tools for temporarily connecting sheets before or during assembly operations B25B 31/005)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media215.png

References
Limiting references

This place does not cover:

Means for preventing axial movement of a pin by separate parts with radially resilient locking members

F16B 21/125

Informative references

Attention is drawn to the following places, which may be of interest for search:

Special clamping devices for workpieces to be riveted together, e.g. operating through the rivet holes

B21J 15/42

Hand tools for temporarily connecting sheets before or during assembly operations

B25B 31/005

fastened by fluid pressure, including by explosion (bolts shot by means of detonation-operated nailing tools into concrete constructions, metal walls or the like F16B 19/14)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media216.png

References
Limiting references

This place does not cover:

Bolts shot by means of detonation-operated nailing tools into concrete constructions, metal walls or the like

F16B 19/14

{fastened by explosion}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media217.png

Bolts or the like for shooting into concrete constructions, metal walls or the like by means of detonation-operated nailing tools (tools therefor B25C, B27F)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media218.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Tools for shooting bolts

B25C, B27F

Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it (riveted or deformable spigots F16B 19/04; for gudgeon pins F16J 1/18); Stud-and-socket releasable fastenings
Definition statement

This place covers:

- Means for preventing axial movement of a pin or the like by rotation, snap in features, engagement in a keyhole slot, separate parts, such as circlips and other locking members.

- Releasable stud-and-socket connections where the stud or the socket or both parts being resilient.

References
Limiting references

This place does not cover:

Rivets or deformable spigots

F16B 19/04

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Limiting axial movement on shafts transmitting torque

F16D

Securing of gudgeon-pins

F16J 1/18

Releasable fastening devices locking by rotation (with snap-action F16B 21/06; studs or coupling pins with resilient protrusions F16B 21/08)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media219.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Electrical connectors locked by rotation

H01R 13/625

Informative references

Attention is drawn to the following places, which may be of interest for search:

Releasable devices with snap-action

F16B 21/06

Studs or coupling pins with resilient protrusions

F16B 21/08

with bayonet catch
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media220.png

Releasable fastening devices with snap-action {(quickly-detachable or mountable nuts to threaded bolts F16B 37/0842)}
References
Limiting references

This place does not cover:

Quickly-detachable or mountable nuts to threaded bolts

F16B 37/0842

{with an additional locking element}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media221.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Rivets fastened by a drive pin

F16B 19/1081

in which the socket has a resilient part {(F16B 21/065 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media222.png

{the socket being integrally formed with a component to be fasted, e.g. a sheet, plate or strip}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media223.png

{the socket having a resilient part on its inside}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media224.png

{the socket having resilient parts on its inside and outside}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media225.png

{the socket having a resilient part on its outside (F16B 21/075 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media226.png

{the socket having a further molded-in or embedded component, e.g. a ring with snap-in teeth molded into it (F16B 21/065 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media227.png

in which the stud, pin, or spigot has a resilient part ({F16B 21/065, F16B 21/125, F16B 21/165, F16B 37/043 take precedence}; wall-dowels F16B 13/00)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media228.png

References
Limiting references

This place does not cover:

Dowels

F16B 13/00

Snap in sockets

F16B 21/075

{the stud, pin or spigot having two resilient parts on its opposite ends in order to connect two elements}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media229.png

{with a series of flexible ribs or fins extending laterally from the shank of the stud, pin or spigot, said ribs or fins deforming predominantly in a direction parallel to the direction of insertion of the shank}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media230.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Resiliently deformable pins made in one piece

F16B 19/004

{the shank of the stud, pin or spigot having elevations, ribs, fins or prongs intended for deformation or tilting predominantly in a direction perpendicular to the direction of insertion}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media231.png

References
Limiting references

This place does not cover:

Snap in sockets

F16B 21/075

{the stud, pin or spigot being integrally formed with the component to be fastened, e.g. forming part of the sheet, plate or strip}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media232.png

Special rules of classification

In exeptional cases, namely if details of the snap in portion of the fastener are of interest, pipe or cable fasteners may be classified here

Releasable fastening devices with a stud engaging a keyhole slot
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media233.png

by separate parts ({F16B 21/06 takes precedence}; key-type connection F16B 3/00; locking screws or nuts against rotation by such means F16B 39/04)
References
Limiting references

This place does not cover:

Locking screws or nuts against rotation by separate parts

F16B 39/04

Informative references

Attention is drawn to the following places, which may be of interest for search:

Key-type connections

F16B 3/00

with locking-pins or split-pins thrust into holes
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media234.png

{radially resilient or with a snap-action member, e.g. elastic tooth, pawl with spring, resilient coil or wire}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media235.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Temporary rivets

F16B 19/109

with grooves or notches in the pin or shaft
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Connections of non-slidable parts in machine tools

B23Q 1/0063

Informative references

Attention is drawn to the following places, which may be of interest for search:

Component parts of injection moulding machines

B29C 45/17

{with balls or rollers (for connections of rods or tubes engaged telescopically F16B 7/1409)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media236.png

References
Limiting references

This place does not cover:

Telescopic connections of tubes locked with balls or rollers

F16B 7/1409

Informative references

Attention is drawn to the following places, which may be of interest for search:

Clamps with rollers and balls

F16B 2/16

with circlips or like resilient retaining devices, {i.e. resilient in the plane of the ring or the like}; Details (spring-washers for locking nuts F16B 39/24; adjusting rings F16B 43/00)
References
Limiting references

This place does not cover:

Spring-washers for locking nuts

F16B 39/24

Adjusting rings

F16B 43/00

{internal, i.e. with spreading action}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media237.png

{external, i.e. with contracting action}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media238.png

for bolts or shafts without holes, grooves, or notches for locking members {(by rings resilient in their plane F16B 21/18)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media239.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Releasable fastenings by rings resilient in their plane

F16B 21/18

Specially shaped {nuts or} heads of bolts or screws for rotations by a tool {(detachable ornamental heads for screws A47G 3/00; screwdrivers, wrenches B25B)}
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Detachable ornamental heads for screws

A47G 3/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Screwdrivers, wrenches

B25B

{characterised by the shape of the recess or the protrusion engaging the tool (F16B 23/0069 and F16B 23/0076 take precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media240.png

{substantially rectangular, e.g. one-slot head}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media241.png

{substantially cross-shaped}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media242.png

{star-shaped or multi-lobular, e.g. Torx-type, twelve-point star}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media243.png

{substantially prismatic with up to six edges, e.g. triangular, square, pentagonal, Allen-type cross-sections}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media244.png

{having one eccentric circular or polygonal recess or protrusion}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media245.png

{with a conical or prismatic recess for receiving a centering pin of the tool apparatus}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media246.png

{with grooves, notches or splines on the external peripheral surface designed for tools engaging in radial direction (F16B 23/003 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media247.png

{with holes to be engaged with corresponding pins on the tool or protruding pins to be engaged with corresponding holes on the tool}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media248.png

{causing slipping of the tool in loosening rotation, i.e. disabling unscrewing unless another tool is used (F16B 31/027 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media249.png

{with a threaded engagement between the head of the bolt or screw and the tool}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media250.png

{with a head engageable by two or more different tools (F16B 23/0076 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media251.png

Screws that cut thread in the body into which they are screwed, e.g. wood screws {(F16B 35/065 takes precedence; joining sheets or plates using screws with two separate threads F16B 5/0275, using screws with adjustment sleeves F16B 5/0283)}
Definition statement

This place covers:

Self tapping or self-cutting screws used for securing constructional elements or machine parts together.

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Self cutting screws used for medical purposes

A61B 17/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Joining sheets or plates using screws with two separate threads

F16B 5/0275

Using screws with adjustment sleeves

F16B 5/0283

Self-cutting dowels

F16B 13/002

Geometry of the head

F16B 35/06, F16B 35/065

Special rules of classification

For self cutting screws at least one classification in F16B 25/00 should be attributed. Several classes in F16B 25/00 in the inventive information field are generally to be attributed.

No additional classification should be attributed in F16B 35/00, except for F16B 35/06 and F16B 35/065.

{of the helical wire type (threaded wire-inserts F16B 37/12)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media252.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Threaded wire inserts

F16B 37/12

{the material being a soft organic material, e.g. wood or plastic (F16B 25/0031 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media253.png

{the material being metal, e.g. sheet-metal or aluminium (F16B 25/0031 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media254.png

{the material being a hard non-organic material, e.g. stone, concrete or drywall (F16B 25/0031 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media255.png

{the screw being designed to be screwed into different materials, e.g. a layered structure or through metallic and wooden parts}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media256.png

{the ridge being characterised by its cross-section in the plane of the shaft axis}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media257.png

{the ridge having indentations, notches or the like in order to improve the cutting behaviour}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media258.png

{the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media259.png

{with a non-threaded portion on the shaft of the screw}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media260.png

{with multiple-threads, e.g. a double thread screws}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media261.png

{characterised by its pitch, e.g. a varying pitch}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media262.png

{with a shaft of non-circular cross-section or other special geometric features of the shaft}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media263.png

{characterised by geometric details of the tip}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media264.png

{the screw having wings}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media265.png

{the screw being assembled or manufactured from several components, e.g. a tip out of a first material welded to shaft of a second material}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media266.png

{by means of a drilling screw-point, i.e. with a cutting and material removing action}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media267.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Tools for drilling machines

B23B 51/00

{by means of a self-piercing screw-point, i.e. without removing material}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media268.png

Bolts, screws, or nuts formed in integral series but easily separable, particularly for use in automatic machines {(arrangements for feeding screws or nuts in spanners, wrenches or screw-drivers with built-in magazines B25B 23/06)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media269.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Nail formed in integral series but easily separable

F16B 15/08

Arrangements for feeding screws or nuts

B25B 23/04

Screwed connection with deformation of nut or auxiliary member while fastening ({Nuts fastened to surfaces by riveting F16B 37/065}; members deformed for locking screws, bolts or nuts F16B 39/22)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media270.png

References
Limiting references

This place does not cover:

Nuts fastened to surfaces by riveting

F16B 37/065

Members deformed for locking screws, bolts or nuts

F16B 39/22

Screwed connections specially modified in view of tensile load; Break-bolts (shape of thread {F16B 33/02; in couplings F16D 9/00})
Definition statement

This place covers:

Breakbolts

Screwed connections with indication of the load

Screwed connections maintaining a specific load

Screwed connections modified in view of a possible fatigue rupture

References
Limiting references

This place does not cover:

Shape of thread

F16B 33/02

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Couplings with safety member for disconnecting

F16D 9/00

{Breakbolts loosening due to the action of an explosive charge}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media271.png

{Break-bolts loosening at high temperature}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media272.png

for indicating {the attainment of a particular tensile load} or limiting tensile load {(apparatus for, or method of, determining value of torque or twisting moment for tightening a nut or other member similarly stressed G01L 5/24)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media273.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Apparatus for, or method of, determining value of torque or twisting moment for tightening a nut or other member similarly stressed

G01L 5/24

{by means of a frangible part (F16B 31/025, F16B 31/028 take precedence; break members in torque limiters or torque indicators in wrenches or screwdrivers B25B 23/1415)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media274.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Break members in torque limiters or torque indicators in wrenches of screwdrivers

B25B 23/1415

{with the bottom of the nut or of the head of the bolt having gaps which close as the bolt tension increases, e.g. with lips or with a load-indicating flange}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media275.png

{with a gauge pin in a longitudinal bore in the body of the bolt}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media276.png

{with a bolt head causing the fastening or the unfastening tool to lose the grip when a specified torque is exceeded}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media277.png

{with a load-indicating washer or washer assembly}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media278.png

for maintaining {a} tensile load
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media279.png

{Prestressed connections tensioned by means of liquid, grease, rubber, explosive charge, or the like (hydraulic bolt tensioners B25B 29/02)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media280.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Hydraulic bolt tensioners

B25B 29/02

having regard to possibility of fatigue rupture
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media281.png

Features common to bolt and nut
Definition statement

This place covers:

Features of fastening members with thread that are common to bolt and nut.

{Means for preventing rotation of screw-threaded elements (F16B 39/00 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media282.png

{Sealing; Insulation (by means of washers F16B 43/001)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media283.png

References
Limiting references

This place does not cover:

Sealing of rivets

F16B 19/008

Sealing by means of washers

F16B 43/001

Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Insulation

includes electric insulation

{Non-metallic fasteners using screw-thread}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media284.png

{Corrosion preventing means}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media285.png

Shape of thread; Special thread-forms ({F16B 25/00 takes precedence; used to remove paint or dirt layers F16B 35/007, F16B 37/002}; used as screw-locking device F16B 39/30)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media286.png

References
Limiting references

This place does not cover:

Used to remove paint or durt layers

F16B 35/007, F16B 37/002

Used as screw-locking device

F16B 39/30

Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure {or fretting (corrosion preventing means F16B 33/008; settable coatings for locking threaded members F16B 39/225; deformable coatings for locking threaded members F16B 39/34)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media287.png

References
Limiting references

This place does not cover:

Corrosion preventing means

F16B 33/008

Settable coatings for locking threaded members

F16B 39/225

Deformable coatings for locking threaded members

F16B 39/34

Informative references

Attention is drawn to the following places, which may be of interest for search:

Heat treatment for screws, bolts

C21D 9/0093

Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws ({F16B 33/008 takes precedence; joining sheets or plates using screws with two separate threads F16B 5/0275; using screws with adjustment sleeves F16B 5/0283}; thread cutting screws F16B 25/00)
Definition statement

This place covers:

Screws or bolts, i.e. fastening elements having an external thread, i.e. a helical ridge wrapped around its shaft

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Joining sheets or plates using screws with two separate threads

F16B 5/0275

using screws with adjustment sleeves

F16B 5/0283

Thread cutting screws

F16B 25/00

Special rules of classification

Thread cutting screws are classified in F16B 25/00. An additional entry can be attributed in F16B 35/06.

{onto which threads are cut during screwing (F16B 37/002 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media288.png

{Set screws; Locking means therefor}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media289.png

{Removing paint or dirt layers covering the threaded part of nut-like members}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media290.png

divided longitudinally
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media291.png

with specially-shaped head or shaft in order to fix the bolt on or in an object (locking the bolt against turning in the object by the use of accessory parts F16B 39/00)
References
Limiting references

This place does not cover:

Locking the bolt against turning in the object by the use of accessory parts

F16B 39/00

{Specially-shaped shafts (shape of thread F16B 33/02)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media292.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Shape of thread

F16B 33/02

{for retention or rotation by a tool, e.g. of polygonal cross-section}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media293.png

{Specially-shaped ends}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media294.png

{for retention or rotation by a tool (specially shaped heads of bolts or screws for rotation by a tool F16B 23/00)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media295.png

{for preventing cross-threading, i.e. preventing skewing of bolt and nut}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media296.png

{Specially-shaped necks (F16B 35/06 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media297.png

Specially-shaped heads (special shape in order to rotate the bolt F16B 23/00 {; separate hook adaptors for bolts F16B 43/025})
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media298.png

References
Limiting references

This place does not cover:

Separate hook adaptors for bolts

F16B 43/025

Special rules of classification

Self threaded screws with specially shaped heads are also classified in this group.

{with self-countersink-cutting means}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media299.png

Nuts or like thread-engaging members {(specially shaped for rotations by a tool F16B 23/00)}
Definition statement

This place covers:

Nuts, i.e. fasteners with a threaded hole.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Specially adapted for rotation by a tool

F16B 23/00

Making of nuts

B21D 53/24, B21K 1/56, B21K 1/64, B21H 3/027

Special rules of classification

Groups F16B 37/04 comprise also threaded studs that are fastened to a surface.

{cutting threads during screwing; removing paint or dirt layers covering threaded shanks}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media300.png

{into which threads are cut during screwing}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media301.png

made of thin sheet material (fastening to surfaces F16B 37/04 {; used as lock-nuts F16B 39/14})
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media302.png

References
Limiting references

This place does not cover:

Nuts made of thin sheet material used as lock-nuts

F16B 39/14

Informative references

Attention is drawn to the following places, which may be of interest for search:

Fastening nuts to surfaces

F16B 37/04

Devices for fastening nuts to surfaces, e.g. sheets, plates {(nuts fastened behind a wall by a toggle-mechanism F16B 13/0808; threaded inserts F16B 37/122; measures against loss of bolts, nuts or pins F16B 41/002)}
References
Limiting references

This place does not cover:

Nuts fastened behind a wall by a toggle mechanism

F16B 13/0808

Threaded inserts

F16B 37/122

Measures against loss of bolts, nuts or pins

F16B 41/002

{Releasable devices (F16B 37/044, F16B 37/045 take precedence)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Joining sheets by clamps or clips fastened over the edges of the sheets or plates

F16B 5/0635

{locking by rotation}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media303.png

{with snap action}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media304.png

{Nut cages}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media305.png

{with resilient means for urging the nut inside the channel}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media306.png

{Barrel nuts}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media307.png

{Non-releasable devices (F16B 37/044, F16B 37/045 and F16B 37/06 take precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media308.png

{by means of welding}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media309.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Stud welding

B23K 9/20

{with the use of separate rivets}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media310.png

{by deforming the material of the nut}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media311.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Machines for feeding nuts

B23P 19/00

{the material of the nut being deformed by a threaded member generating axial movement of the threaded part of the nut, e.g. blind rivet type}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media312.png

{by deforming the material of the support, e.g. the sheet or plate}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media313.png

{Nuts engaged from the end of the bolt, e.g. axially slidable nuts}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media314.png

{movable along the bolt after tilting the nut}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media315.png

{in two halves pivotally connected}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media316.png

{with a longitudinal slit through the annular wall of the nut for enabling expansion of the nut, e.g. for easy removal}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media317.png

{with balls engaging threads or grooves on the shaft of the bolt}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media318.png

{fastened to the threaded bolt with snap-on-action, e.g. push-on nuts for stud bolts (F16B 37/0857 takes precedence; snap-on-action of a pin, spigot, shaft or the like and a member surrounding it F16B 21/06)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media319.png

{with at least one unthreaded portion in both the nut and the bolt}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media320.png

{with the threaded portions of the nut engaging the thread of the bolt by the action of one or more springs or resilient retaining members (F16B 37/0821 and F16B 37/0835 take precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media321.png

{with the threaded portions of the nut engaging the thread of the bolt by pressing or rotating an external retaining member such as a cap, a nut, a ring or a sleeve (F16B 37/0835 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media322.png

{in one piece, e.g. C-shaped nuts}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media323.png

{in two halves hingedly connected}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media324.png

{in two or more pieces, e.g. assemblies made by two C-shaped nuts mutually interlocked, or retained by an additional member (F16B 37/0885 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media325.png

with thread-engaging surfaces formed by inserted coil-springs, discs, or the like; Independent pieces of wound wire used as nuts; Threaded inserts for holes {(mounting devices B25B 27/143)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media326.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Mounting devices

B25B 27/143

{Threaded inserts, e.g. "rampa bolts"}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media327.png

{the external surface of the insert being threaded}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media328.png

{and self-tapping}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media329.png

Cap nuts; Nut caps or bolt caps
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media330.png

{Sleeve nuts, e.g. combined with bolts}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media331.png

Wing-nuts (F16B 37/14 takes precedence)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media332.png

Locking of screws, bolts or nuts ({F16B 35/005 takes precedence}; locking of bottle closures B65D; locking of rail-fastening bolts for permanent ways E01B 9/12; locking of fastening means for railway fishplates E01B 11/38; locking devices for valves or cocks F16K)
Definition statement

This place covers:

Locking of screws by means of a settable material, plastic deformation, geometric engagement or friction.

References
Limiting references

This place does not cover:

Measures against loss of bolts and nuts (preassembling)

F16B 41/002

Measures against unauthorised operation of bolts, nuts or pins

F16B 41/005

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Locking of bottle closures

B65D

Locking of rail-fastening bolts for permanent ways

E01B 9/12

Locking of fastening means for railway fishplates

E01B 11/38

Locking devices for valves or cocks

F16K

specially adapted to prevent loosening at extreme temperatures
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media333.png

in which the locking takes place after screwing down (F16B 39/01 takes precedence; split-pins, circlips, or the like for preventing relative axial movement only F16B 21/10; fastening nuts by welding or riveting F16B 37/06)
References
Limiting references

This place does not cover:

Split-pins, circlips, or the like for preventing relative axial movement only

F16B 21/10

Fastening nuts by welding or riveting

F16B 37/06

{by injecting a settable material after the screwing down}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media334.png

{by driving a conic or wedge-shaped expander through the threaded element}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media335.png

{by plastic deformation of a part of one of the threaded elements into a notch or cavity of the other threaded element (F16B 39/103 and F16B 39/106 take precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media336.png

{by swaging the nut on the bolt, i.e. by plastically deforming the nut}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media337.png

{by means of an auxiliary bolt or threaded element whose action provokes the deformation of the main bolt or nut and thereby its blocking}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media338.png

with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media339.png

with a pin or staple parallel to the bolt axis
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media340.png

with a cap interacting with the nut, connected to the bolt by a pin or cotter pin
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media341.png

by a plate, {spring, wire} or ring immovable with regard to the bolt or object {and mainly perpendicular to the axis of the bolt} (F16B 39/08 takes precedence)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media342.png

{with a plate, spring, wire or ring holding two or more nuts or bolt heads which are mainly in the same plane}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media343.png

{with a locking cup washer, ring or sleeve surrounding the nut or bolt head and being partially deformed on the nut or bolt head, or on the object itself}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media344.png

{locking the bold head or nut into a hole or cavity, e.g. with the cup washer, ring or sleeve deformed into a dimple in the cavity}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media345.png

{with a deformable locking element, e.g. disk or pin above the bolt head or nut, flattened into a hole or cavity within which the bolt head or nut is positioned}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media346.png

{with a locking washer under the nut or bolt head having at least one tongue or lug folded against the nut or bolt head, or against the object itself (F16B 39/103 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media347.png

by means of locknuts
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media348.png

{foreseen with mating surfaces inclined, i.e. not normal, to the bolt axis}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media349.png

{with helically inclined mating surfaces}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media350.png

{causing radial forces on the bolt-shaft (F16B 39/36 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media351.png

{by means of eccentrical or spiral interengaging parts}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media352.png

made of thin sheet material or formed as spring-washers (locknuts per se made of thin sheet metal F16B 37/02)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media353.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Locknuts per se made of thin sheet metal

F16B 37/02

in which the screw-thread of the locknut differs from that of the nut
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media354.png

in which the locknut grips with screw-thread in the nuts as well as on the bolt
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media355.png

by means of steel wire or the like (F16B 39/10 takes precedence)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media356.png

{by means of a settable material}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media357.png

by means of washers, spring washers, or resilient plates that lock against the object (locking to the screw-thread F16B 39/14 {, F16B 39/34}, F16B 39/36)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media358.png

References
Limiting references

This place does not cover:

Locking to the screw-thread

F16B 39/14

Locking by deformable inserts or the like parts

F16B 39/34

Locking with conical parts

F16B 39/36

with spring washers fastened to the nut or bolt-head
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media359.png

by special members on, or shape of, the nut or bolt (F16B 39/26 takes precedence; locknuts F16B 39/12)
References
Limiting references

This place does not cover:

Locknuts

F16B 39/12

Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media360.png

{causing the bolt to tilt}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media361.png

Locking by means of elastic deformation ({F16B 39/2825, F16B 39/36,} F16B 39/38 take precedence)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media362.png

caused by saw cuts
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media363.png

Locking exclusively by special shape of the screw-thread
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media364.png

References
Limiting references

This place does not cover:

Shape of thread

F16B 33/02

Locking by means of a pawl or pawl-like tongue
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media365.png

Locking by deformable inserts or like parts
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media366.png

with conical locking parts, which may be split, including use of separate rings co-operating therewith
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media367.png

with a second part of the screw-thread which may be resiliently mounted (F16B 39/30 takes precedence)
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media368.png

Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins ({locking of screws, bolts or nuts F16B 39/00;} seals G09F 3/00)
Definition statement

This place covers:

Measures against loss of bolts, nuts or pins in preassembling and against unauthorised operation

References
Limiting references

This place does not cover:

Locking of bolts, nuts or pins

F16B 39/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Seals

G09F 3/00

{Measures against loss of bolts, nuts or pins (devices for fastening nuts to surfaces F16B 37/04)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media369.png

References
Limiting references

This place does not cover:

Devices for fastening nuts to surfaces

F16B 37/04

{Measures against unauthorised operation of bolts, nuts or pins (F16B 23/0007, F16B 23/0061, F16B 23/0069, F16B 23/0076 and F16B 31/02 take precedence; locks, keys E05B; for valves, taps or cocks F16K 35/00; for pipe-joints with swivel-nuts F16L 19/005)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media370.png

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Locks, keys

E05B

For valves, taps or cocks

F16K 35/00

For pipe-joints with swivel-nuts

F16L 19/005

Informative references

Attention is drawn to the following places, which may be of interest for search:

Anti-theft devices for car wheels

B60B 7/16

{by means of two housings hingedly connected which enclose the bolt head}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media371.png

Washers or equivalent devices; Other devices for supporting bolt-heads or nuts (circlips F16B 21/18; {for indicating tensile load F16B 31/02; forming a whole with the bolt or nut F16B 33/00; locking bolts or nuts by means of a fixed plate or ring, or washer-like resilient plates F16B 39/10, F16B 39/24})
Definition statement

This place covers:

Washers or equivalent devices, i.e. is a thin, typically disk shaped, plates with a hole that is used to distribute the load of a threaded fastener, such as a screw or a nut.

Example:

media372.png

References
Limiting references

This place does not cover:

Circlips

F16B 21/18

Washers for indicating tensile load

F16B 31/02

Locking bolts or nuts by means of a fixed plate or ring, or washer-like resilient plates

F16B 39/10, F16B 39/24

Informative references

Attention is drawn to the following places, which may be of interest for search:

Washers forming a whole with the bolt or nut

F16B 33/00

Method of making washers

B21F 37/04

Belleville type springs

F16F 1/32

{for sealing or insulation}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media373.png

{with special provisions for reducing friction}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media374.png

{with a special hole shape in order to allow a quick mounting or dismounting of the washer, e.g. with a keyhole slot (F16B 43/005 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media375.png

{with a radial cut in order to improve elasticity of the washer (F16B 43/005 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media376.png

{engaging the bolt laterally to allow a quick mounting or dismounting of the washer, i.e. without the need to engage over the end of the bolt (F16B 43/009 takes precedence)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media377.png

{in two or more parts hingedly connected}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media378.png

{in two or more parts}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media379.png

{with a wedging effect in order to adjust the height of the washer}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media380.png

with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media381.png

{for surfaces not surrounding the bolt, e.g. hook adaptors for bolts}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media382.png

Hooks; Eyes (if the attaching parts or means are concerned, groups F16B 13/00, F16B 15/00, F16B 19/00, F16B 25/00, F16B 35/00, F16B 47/00 take precedence; for hanging pictures or the like A47G 1/16; towing hooks for ships B63B 21/58; for hoisting or hauling purposes B66C; hooks or eyes with integral parts designed to facilitate quick attachment to cables or ropes at any point F16G 11/14)
Definition statement

This place covers:

Curved fastening member used for fastening or securing constructional elements or machine parts together. This group also covers snap-hooks for mountaineering.

References
Limiting references

This place does not cover:

Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose

F16B 13/00

Nails; Staples

F16B 15/00

Bolts without screw-thread; Pins, including deformable elements; Rivets

F16B 19/00

Screws that cut thread in the body into which they are screwed, e.g. wood screws

F16B 25/00

Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws

F16B 35/00

Suction cups for attaching purposes; Equivalent means using adhesives

F16B 47/00

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Hooks for hanging pictures or the like

A47G 1/16

Clothes hangers

A47G 25/06

Towing hooks for ships

B63B 21/58

Hooks for hoisting or hauling purposes

B66C

Hooks or eyes with integral parts designed to facilitate quick attachment to cables or ropes at any point

F16G 11/14

Informative references

Attention is drawn to the following places, which may be of interest for search:

Mountaineering

A63B 29/02

Special rules of classification

References A47G 1/16, B63B 21/58, B66C, F16G 11/14 are non-limiting in the main group F16B 45/00. CPC will be updated/corrected once this inconsistency is resolved in IPC.

{Eyes}
Definition statement

This place covers:

The figures below are illustrative examples which fall within the scope of this subgroup. In the figures are shown examples of eyes E.

media418.png

media429.png

{plastics}
Definition statement

This place covers:

The figures below are illustrative examples which fall within the scope of this subgroup. In the figures are shown examples of a plastic hook.

media440.png

{wire}
Definition statement

This place covers:

The figures below are illustrative examples which fall within the scope of this subgroup. In the figures are shown examples of a hook formed from a wire material. media452.png

{sheet metal}
Definition statement

This place covers:

The figures below are illustrative examples which falls within the scope of this subgroup. In the figures, each of the closing members G and hook bodies H are formed from sheet metal. media455.png

media456.png

Hooks with pivoting {or elastically bending} closing member
Definition statement

This place covers:

Illustrative example of a hook with pivoting closing member (G).

media444.png

{the closing member being operable remotely, e.g. by cables, chains or rods}
Definition statement

This place covers:

Illustrative example of the closing member G being maneuverable remotely with cable C.

media457.png

{the closing member pivoting about an axis lying in the plane of the hook}
Definition statement

This place covers:

Illustrative example shows closing member B pivoting about axis A which lies in the plane of hook C. media458.png

{the closing member pivoting about an axis perpendicular to the plane of the hook}
Definition statement

This place covers:

The following figure shows an example of a hook with closing member G which pivots about perpendicular axis P.

media459.png

{and having means biasing the closing member about the pivot}
Definition statement

This place covers:

Illustrative example of a hook with spring S which biases closing member G about pivot P.

media419.png

{and including a coil type spring}
Definition statement

This place covers:

Illustrative example of a hook with coil spring S which biases closing member G about pivot P. media420.png

{and having position-locking means for the closing member}
Definition statement

This place covers:

The exemplary figure below shows a hook where the position of closing member G is prevented from moving by locking means LM.

media421.png

{the position-locking means being pivotally connected}
Definition statement

This place covers:

The exemplary figure below shows locking means LM being pivotally connect at pin P. media422.png

{the position-locking means being slidably mounted}
Definition statement

This place covers:

Illustrative example of a hook where locking means LM is slidably mounted to lock pivoting member G.

media423.png

{the closing member closing when a structure to be secured is tensioned}
Definition statement

This place covers:

Illustrative example of a hook where closing member G closes when tension T is applied to the hook as shown.

media424.png

{whereby the closing member is slidable relative to the pivot}
Definition statement

This place covers:

The figure below is an illustrative example which falls within the scope of this subgroup. In the figure, the closing member G is slidable along slot S which is relative to pivot point P. media425.png

{the closing member being revolvably mounted and having a disc shape}
Definition statement

This place covers:

The figure below is an illustrative example which falls within the scope of this subgroup. In the figure, the closing member G is revolvably mounted to rotate about pin P, and is substantially in the shape of a disc.

media426.png

{the closing member constituting the hook shaped portion of the hook}
Definition statement

This place covers:

The figure below is an illustrative example which falls within the scope of this subgroup. In the figure, the closing member G is hook shaped.

media427.png

{the hook forming a loop or ring when interlocked with the closing member, i.e. the entire structure of the hook being loop shaped}
Definition statement

This place covers:

The figure below is an illustrative example which falls within the scope of this subgroup. In the figure, the hook forms as a loop or ring when interlocked.

media428.png

{with an elastically bending closing member}
Definition statement

This place covers:

The figures below are illustrative examples which falls within the scope of this subgroup. In the figures, an closing member G elastically bends to an open position, and is self-biased to a closed position. The closing member G may be, e.g. of a wire, sheet, plastic, or integrally formed material.

media430.png

{Multiple locking cavities, each having a pivoting closing member}
Definition statement

This place covers:

The figure below is an illustrative example which falls within the scope of this subgroup. In the figure, a main body B of the hook includes multiple locking cavities C, each cavity having a pivoting closing member G that enters its corresponding cavity C.

media431.png

Hooks with sliding closing member
Definition statement

This place covers:

Illustrative example of a hook with sliding closing member 12.

media446.png

{the closing member being operable remotely, e.g. by cables, chains or rods}
Definition statement

This place covers:

The figures below are illustrative examples which falls within the scope of this subgroup. In the figure, sliding closing member G is operable by pulling rod R in the direction of the arrow. media432.png

{provided with position-locking means for the closing member}
Definition statement

This place covers:

The figure below is an illustrative example which falls within the scope of this subgroup. In the figure, sliding closing member G is shown locked in a closed position by locking element LM. media433.png

{in the form of a threaded closing member}
Definition statement

This place covers:

The figure below is an illustrative example which falls within the scope of this subgroup. In the figure, sliding closing member G is shown to lock in a closed position by a threaded locking element LM onto threaded end T.

media434.png

{provided with means biasing the closing member}
Definition statement

This place covers:

The figure below is an illustrative example which falls within the scope of this subgroup. In the figure, spring S biases the sliding closing member G in a closed position. media435.png

{provided with a guide of the closing member encircling a shank of the hook}
Definition statement

This place covers:

The figure below is an illustrative example which falls within the scope of this subgroup. In the figure, the sliding closing member G includes a guide K encircling the shank S.

media436.png

{provided with a cavity in a shank of the hook forming a track or way for the closing member}
Definition statement

This place covers:

The figure below is an illustrative example which falls within the scope of this subgroup. In the figure, the shank S of the hook includes a cavity C forming a track or way for the closing member G. media437.png

{the closing member constituting the hook-shaped portion of the hook}
Definition statement

This place covers:

The figure below is an illustrative example which falls within the scope of this subgroup. In the figure, the hook shaped portion H of the hook functions as the closing member. media438.png

{the hook forming a loop or ring when interlocked with the closing member, i.e. the entire structure of the hook being loop shaped}
Definition statement

This place covers:

The figures below are an illustrative example which falls within the scope of this subgroup. In the figures, the hook forms a loop or ring shape when the sliding closing member G is interlocked. media439.pngmedia441.png

{Multiple locking cavities, each having a sliding closing member}
Definition statement

This place covers:

The figure below illustrates an example which falls within the scope of this subgroup. Hooks comprising multiple locking cavities C within a main body portion B of the hook in which a corresponding sliding closing member G enters each locking cavity C. media442.png

Hooks with two symmetrically-pivoting hook parts {within the same locking cavity (F16B 45/035 takes precedence)}
Definition statement

This place covers:

Illustrative example of a hook including two symmetrically pivoting hook parts (H).

media448.png

References
Limiting references

This place does not cover:

Hooks with a pivoting or elastically bending closing member the hook forming a loop or ring when interlocked with the closing member, i.e. the entire structure of the hook being loop shaped

F16B 45/035

Suction cups for attaching purposes; Equivalent means using adhesives {(devices using adhesives, suction or magnetism for hanging or supporting pictures or the like A47G 1/17; vacuum work holders B25B 11/005; anchoring of ships using suction B63B 21/27; suction cups for handling glass B65G 49/061; load-engaging elements for cranes using suction means B66C 1/02)}
Definition statement

This place covers:

Suction cups, i.e. fasteners that uses negative fluid pressure of air or water to adhere to surfaces.

Example:

media387.jpg

References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Devices using adhesives, suction or magnetism for hanging or supporting pictures or the like

A47G 1/17

Vaccuum work holders

B25B 11/00

Anchoring of ships using suction

B63B 21/27

For conveying articles

B65G 47/91, H01L 21/6838

Suction cups for handling glass

B65G 49/061

Load-engaging elements for cranes using suction means

B66C 1/02

{using adhesives for attaching purposes (using adhesives for connecting constructional elements F16B 11/006)}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media388.png

{the suction cups being activated by the rotation of a cranked lever arm}
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media389.png

Details of socket shapes
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media398.png

Connections with hook-like parts gripping behind a blind side of an element to be connected
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media399.jpeg

the hook being a separate retainer
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media411.png

Dovetail-like connections
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media410.png

Threaded clamping parts
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media412.png

Clamping parts being collars, bushings or wedges
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media413.png

the flange being separate from the elements to be connected
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media414.png

bolted or riveted
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media415.png

clamped
Definition statement

This place covers:

Illustrative example of subject matter classified in this group.

media416.png

Use of a shape-memory material
Definition statement

This place covers:

Illustrative example of subject matter classified in this group:

media460.png

Use of a hydraulic action
Definition statement

This place covers:

Illustrative example of subject matter classified in this group:

media461.png

Use of a pneumatic action
Definition statement

This place covers:

Illustrative example of subject matter classified in this group:

media462.png

with markings, colours, indicators or the like
Definition statement

This place covers:

Illustrative example of subject matter classified in this group:

media463.png

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

For indicating tensile load

F16B 31/02