Patent ID: 8021092

Claim:
An element for attachment to a sheet metal component, said element having a rectangular or square shape in plan view, with a lower component engaging face and an upper face remote from said lower face, first and second opposed longitudinal sides and third and fourth opposed transverse sides extending between said first and second opposed longitudinal sides, first and second bars provided at said lower component engaging face and disposed at and aligned parallel to said first and second longitudinal sides, there being no bars extending parallel to said third and fourth opposed transverse sides, a centrally arranged aperture extending perpendicular to said lower component engaging face, a component piercing projection present at said lower component engaging face and disposed concentric to said aperture, and a recessed region between said first and second bars said component piercing projection being of polygonal shape and said first and second bars each having an inclined flank forming an undercut at a side facing said component piercing projection, said component piercing projection having a free end face spaced from a free end face of said first and second bars by a maximum amount corresponding to a thickness of said sheet metal component wherein first and second grooves are provided in said component engaging face spaced inwardly of and aligned parallel to said first and second longitudinal sides, thereby defining said first and second bars and said recessed region being present between said first and second grooves, said recessed region being a conical recess diverging in a direction going towards said component engaging face.