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)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Locking of screws, bolts, or nuts

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)

Full Title

Full titles differ between systems:

IPC:

Locking of screws, bolts, or nuts

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)

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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F16B 39/01 specially adapted to prevent loosening at extreme temperatures IPC+CPC Available in IPC and CPC
F16B 39/02 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) +5 CPC IPC+CPC Available in IPC and CPC
F16B 39/22 in which the locking takes place during screwing down or tightening (F16B39/01 takes precedence) +1 CPC IPC+CPC Available in IPC and CPC