Description: 411 expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener / 411 expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener/(190) having structure to restrict rotation of threaded, mating pieces (e.g., nut lock) (259) comprising a thread lock (265) including a tapered (e.g., a conical) surface for wedging the internally threaded element against the externally threaded one (266) segmented internally threaded element (268) including a discrete, threaded member carrying the tapered surface and threadedly engaging one of the threaded elements
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Patent Apps in 411/268
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