Torque resistant fastening element

摘要

A torque resistant self-attaching fastener (20) having a tubular barrel portion (26) and a radial flange portion (24) including a plurality of circumferentially spaced radial projections (44) each having opposed planar generally radial side faces (45) with the outer surface of the radial flange between the radial projections having a greater circumferential width than a circumferential width of the radial projections and a radial length less than the circumferential width. The side faces may be aligned with a radius, the side faces may be parallel or the side faces of adjacent radial projections may be parallel.