Self-piercing fixing element that can be press-fitted to sheet metal in a torsion and expulsion-proof manner

摘要

The metal press fixing element (10) has a ring-shaped body and radial knobs (15,25) which form shapes when pressed into the metal. The fixing element prevents rotation and has an inner thread with an indentation (12). The knobs are equally formed and have retaining collars. The base of the recess is angled outwards inthe direction of the metal part.