IPC Subgroup
F16B 39/22 in which the locking takes place during screwing down or tightening
Introduced: September 1968
Last revised: January 2006
Full Title
Locking of screws, bolts, or nuts > in which the locking takes place during screwing down or tightening
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- Subclass:
- DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
2 direct subcodes
Child Classifications
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- F16B 39/24 by means of washers, spring washers, or resilient plates that lock against the object
- F16B 39/28 by special members on, or shape of, the nut or bolt