Die set for forming a fastener with thread lock

Details Die set for forming a fastener with thread lock Die set for forming a fastener with thread lock

1994-07-14

1996-01-16

Crane, Daniel C.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72469, B21H 306

Patent

active

054838100

ABSTRACT:
A threaded fastener that self locks as it is tightened to a fastened object. The thread includes one or more portions that are shifted, resulting in one or more discontinuities in the thread. Each shifted portion of thread is fully formed at the discontinuity. The shifted portions will deform a relatively softer female thread, causing the deformed thread to move up and over the end faces of the shifted portions and to pack up in front of the end faces to prevent any significant loosening of the connection.

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