| 摘要 |
Thread rolling screw (11) e.g. thread rolling screw made of corrosion proof metal has shaft (12) and threads (14) on which many cutting elements are arranged whereby the cutting element (16) is formed as a weld metal arranged in the recesses (15). The hardness of the cutting element is greater than that of the threads. An independent claim is also included for a method for manufacturing of a screw. |
