| 摘要 |
PROBLEM TO BE SOLVED: To provide a self-tapping fastener having a cutting edge effective for the fastener or a reinforced cutting edge. SOLUTION: The cutting insert 10 for the thread-like fastener includes: a. a plate member having a flat surface and an end; b. a shape of an abuse angle arranged at a tip end of the insert; and c. at least one thread projection part 28 on a side end for cutting a groove and providing a passage to which a thread 18 of the fastener is inserted. COPYRIGHT: (C)2004,JPO
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