| 摘要 |
<p>The bolt (1P) has a threaded shank (4) with a notched face (3) slanting towards the end, and an inflection point at a position where the notched face crosses the ridge of the thread. The inflection point is formed at the beginning of the complete thread part (2) of the shank. An independent claim is also included for a die for manufacturing the bolt.</p> |
