DIFF Subgroup
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
Introduced: September 1968
Full Title
Nuts or like thread-engaging members > 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
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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