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

摘要

Disclosed is a self-piercing fixing element (10) that can be press-fitted to a sheet metal part in a torsion and expulsion-proof manner. The fixing element comprises an annular body with protuberances (15, 25), which are arranged radially on the side facing the sheet metal and become embedded when press-fitted to the sheet metal part, thus securing the fixing element against torsion. The centre of the element contains an internal thread (11) and an annular recess (12) is provided on the side that faces the sheet metal part, when mounted thereon. Displaced sheet metal is pressed into the recess during the mounting process.