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)

Introduced: September 1968

Description

F16B encompasses mechanical fastening devices and joining methods used to permanently or temporarily secure structural and machine components. This includes threaded fasteners (bolts, screws, studs), non-threaded fasteners (nails, rivets, pins), and mechanical locking devices (circlips, retaining rings, wedges). The classification also covers clamping and holding mechanisms (clamps, clips, brackets) and joint designs that enable assembly and disassembly of machine parts and structures. Adjacent classes such as F16D (seals and packings) and F16G (springs) are excluded, as are specialized fastening methods covered under welding or adhesive bonding in other sections.

Title

Titles differ between systems:

IPC: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING

CPC: 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)

Full Title

Full titles differ between systems:

IPC:

DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING

CPC:

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)

Of 28 combined children, 27 exist in both systems.

1 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

22 shared codes have differing titles between IPC and CPC.

Child Classifications

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F16B 1/00 Devices for securing together, or preventing relative movement between, constructional elements or machine parts IPC+CPC Available in IPC and CPC
F16B 11/00 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 C09J5/00) +3 CPC IPC+CPC Available in IPC and CPC
F16B 12/00 Jointing of furniture or the like, e.g. hidden from exterior (F16B2/00 - F16B11/00 take precedence; fastening means per se F16B13/00 - F16B47/00; wood-working B27) IPC+CPC Available in IPC and CPC
F16B 13/00 Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose (nails F16B15/00; self-locking pins or bolts in general, stud-and-socket releasable fastenings F16B21/00; dowels or bolts for railroad sleepers E01B9/00; ans means for anchoring structural elements or bulkheads specially adapted to foundation engineering E02D5/74; bolts or dowels used while laying bricks or casting concrete sleepers E04B1/38; setting anchoring bolts in shafts, tunnels or galleries E21D20/00; anchoring bolts for shafts, tunnels or galleries E21D21/00) +7 CPC IPC+CPC Available in IPC and CPC
F16B 15/00 Nails; Staples (surgical staples A61B17/064; manufacture of nails or staples B21G ; railway spikes E01B9/06) +4 CPC IPC+CPC Available in IPC and CPC
F16B 17/00 Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other (riveting F16B19/04) +3 CPC IPC+CPC Available in IPC and CPC
F16B 19/00 Bolts without screw-thread; Pins, including deformable elements (in screwed connections F16B29/00); Rivets (means for preventing withdrawal F16B21/00) +2 CPC IPC+CPC Available in IPC and CPC
F16B 2/00 Friction-grip releasable fastenings (for cables or ropes, e.g. cleats F16G11/00 ) +1 CPC IPC+CPC Available in IPC and CPC
F16B 21/00 Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it (riveted or deformable spigots F16B19/04; for gudgeon pins F16J1/18); Stud-and-socket releasable fastenings IPC+CPC Available in IPC and CPC
F16B 2200/00 Constructional details of connections not covered for in other groups of this subclass 2nd only +22 CPC CPC only CPC only
F16B 23/00 Specially shaped heads of bolts or screws for rotations by a tool +7 CPC IPC+CPC Available in IPC and CPC
F16B 25/00 Screws that cut thread in the body into which they are screwed, e.g. wood screws +3 CPC −4 IPC IPC+CPC Available in IPC and CPC
F16B 27/00 Bolts, screws, or nuts formed in integral series but easily separable, particularly for use in automatic machines IPC+CPC Available in IPC and CPC
F16B 29/00 Screwed connection with deformation of nut or auxiliary member while fastening (; members deformed for locking screws, bolts or nuts F16B39/22) IPC+CPC Available in IPC and CPC
F16B 3/00 Key-type connections; Keys (F16B2/00 takes precedence; for rods or tubes mutually F16B7/00) +1 CPC IPC+CPC Available in IPC and CPC
F16B 31/00 Screwed connections specially modified in view of tensile load; Break-bolts (shape of thread ) +3 CPC IPC+CPC Available in IPC and CPC
F16B 33/00 Features common to bolt and nut +4 CPC IPC+CPC Available in IPC and CPC
F16B 35/00 Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws (; thread cutting screws F16B25/00) +3 CPC IPC+CPC Available in IPC and CPC
F16B 37/00 Nuts or like thread-engaging members +3 CPC IPC+CPC Available in IPC and CPC
F16B 39/00 Locking of screws, bolts or nuts (; locking of bottle closures B65D; locking of rail-fastening bolts for permanent ways E01B9/12; locking of fastening means for railway fishplates E01B11/38; locking devices for valves or cocks F16K) IPC+CPC Available in IPC and CPC