| 摘要 |
<p>The object of the invention is a locking means (10) for a screw (20), said locking means being intended to be placed in a fastening hole (30), whereby the locking means corresponds to the screw threads and is a strip made of a suitable material formed into a conical spiral (10). According to the invention the first end (11) of the strip is designed as an acute angled tip (11) protruding from the spiral.</p> |
