| 摘要 |
A threaded fastener (10) is having a raised area or bump (16) on a thread flank. The flank can be positioned on the nut thread (12) or on the bolt thread (14). The bump (16) forces the mating threads at least on one flank to have near zero tolerances along the pitchline of the threads and thereby eliminating play. A threaded repair insert (60) having at least one raised area on a threaded surface (62) also is provided.
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