| 摘要 |
<p>In a self-tapping anchor screw (1) for application in mining, tunnel construction, above--ground or below-ground construction, and for screwing into rock or into a building, comprising a screw shaft (2), which comprises a frontal end (3) and a rear end (4), a drill head (5) embodied at the frontal end (3) of the screw shaft (2), a self-tapping thread (9) to fasten the anchor screw (1) in a bore hole implemented by the drilling head (5), the anchor screw (1) shall allow cost-effective production with little technical expense and reliable fastening. This objective is attained such that the anchor screw (1) comprises a fastening element (7) as a separate component complementing the screw shalt (2) and the self-tapping thread (9) is embodied al the fastening element (7).</p> |
