by means of locknuts

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Locking of screws, bolts, or nuts > in which the locking takes place after screwing down > by means of locknuts

CPC:

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) > in which the locking takes place after screwing down (F16B39/01 takes precedence; split-pins, circlips, or the like for preventing relative axial movement only F16B21/10; fastening nuts by welding or riveting F16B37/06) > by means of locknuts

Of 4 combined children, 2 exist in both systems.

2 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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F16B 39/122 +1 CPC CPC only CPC only
F16B 39/126 +1 CPC CPC only CPC only
F16B 39/14 made of thin sheet material or formed as spring-washers (locknuts per se made of thin sheet metal F16B37/02) IPC+CPC Available in IPC and CPC
F16B 39/16 in which the screw-thread of the locknut differs from that of the nut IPC+CPC Available in IPC and CPC