| 摘要 |
<p>The anchor has a cylindrical base body (12) comprising an outer surface area (18) at which an external thread (20) is provided. A recess for a fastening unit i.e. screw, is arranged towards a cylindrical longitudinal axis (L) and runs from an axial front surface (14) of the base body. A tool retainer (28) is provided in the recess and extends towards the longitudinal axis. The retainer extends from the front surface into the recess as a load accommodating structure i.e. internal thread, for rotational driving of the anchor in the longitudinal axis. An independent claim is also included for a method for manufacturing a screw anchor.</p> |
