Wall anchor for a screw, and assembly constituted by such a wall anchor and a screw

摘要

A wall anchor ( 1 ) has a head shaft ( 5 ) and a screw nut shaft ( 6 ) on the same longitudinal axis ( 4 ), connected to each other by a plurality of approximately longitudinal small bars ( 7 ). The bars ( 7 ) are plastically flexible in a direction away from the axis ( 4 ). The screw nut shaft ( 6 ) is equipped with teeth ( 18 ) of generally triangular shape. The teeth ( 18 ) form a longitudinal projection with respect thereto and converge on the axis ( 4 ) to define a point ( 22 ) to perforate or drill a partition ( 8 ).