A fastener for securing remnant-producing materials, a method of manufacturing the fastener, and a method of using the fastener are provided. The fastener is configured such that in use any remnants or slivers produced by rotation of the fastener are forcibly driven into the surface of the material....http://www.google.de/patents/US20020110439?utm_source=gb-gplus-sharePatent US20020110439 - Screw
