Elemento funcional con características de protección contra el giro, así como pieza de montaje formada por el elemento funcional y una pieza de chapa metálica

摘要

The functional element (12) comprises a shaft portion (14), a head portion (16), and a sheet metal contact surface (20,24). An anti-twist plate (32) is provided in the region of the sheet metal contact surface so that the plate provides security against rotation. The recess (31) is formed in the sheet metal contact surface. The raised portion (33) is provided centrally in the recess or surrounding the recess. An independent claim is included for component assembly.