Nuts or like thread-engaging members

Introduced: September 1968

Of 9 combined children, 6 exist in both systems.

3 codes are CPC-only extensions.

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

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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F16B 2037/007 2nd only CPC only CPC only
F16B 37/002 CPC only CPC only
F16B 37/005 CPC only CPC only
F16B 37/02 made of thin sheet material (fastening to surfaces F16B37/04 ) IPC+CPC Available in IPC and CPC
F16B 37/04 Devices for fastening nuts to surfaces, e.g. sheets, plates +4 CPC IPC+CPC Available in IPC and CPC
F16B 37/08 Quickly-detachable nuts, e.g. consisting of two or more parts; Nuts movable along the bolt after tilting the nut +2 CPC −1 IPC IPC+CPC Available in IPC and CPC
F16B 37/12 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 +1 CPC IPC+CPC Available in IPC and CPC
F16B 37/14 Cap nuts; Nut caps or bolt caps +1 CPC IPC+CPC Available in IPC and CPC
F16B 37/16 Wing-nuts (F16B37/14 takes precedence) IPC+CPC Available in IPC and CPC