| 摘要 |
A one piece fastener made from high strength steel for securing a work piece to a metal substrate and including an elongated substantially flat body defining a void extending substantially along the length of the body, a crown at one end of the body formed by substantially symmetrical halves extending outwardly from the fiat body and formed integrally therewith. A gripping and clamping member is disposed within the void in the elongated body and is affixed at each end thereof to the body and defines at least first and second teeth extending outwardly therefrom, the gripping and clamping member being rotated. A piercing tip formed at the opposite end of the elongated body for generating an opening through the work piece and the metal substrate, the piercing tip formed from a plurality of incrementally wider steps progressing from the tip toward the width of the body. |
