| 摘要 |
<p>The present invention concerns a wall anchor for a screw. <??>The wall anchor (1) has a head shaft (5) and a screw nut shaft (6) of the same longitudinal axis (4), connected to each other by a plurality of approximately longitudinal small bars (7), plastically flexible in a direction away from the axis (4). The screw nut shaft (6) is equipped with teeth (18) of generally triangular shape, which form a longitudinal projection with respect thereto, and converge on the axis (4) to define together a point (22) for perforating or drilling a partition (8) in which it is wished to anchor the wall anchor (1). <??>Such a self-drilling wall anchor is compatible with the use of standard screws. <IMAGE></p> |
