US PATENT SUBCLASS 411 / 938
.~.~ Distorted thread

Current as of: June, 1999
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411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

924  DF  COUPLED NUT AND BOLT {13}
929  DF  .~ Thread lock {12}
938.~.~ Distorted thread

DEFINITION

Classification: 411/938

Distorted thread:

Art collection under art collection 929 in which the threads of the nut or bolt are during or after the application of the nut bent, crushed, or injured, so as to lock the nut and bolt from relative rotation.