A fastening mechanism comprising a pin having a shank coupled to the head at a first end of said shank. A metallic pin-lock is provided having a base portion coupled to a resilient pin-engaging portion. The shank has a circumferentially-formed notch at a second end, said notch being adapted to receive...http://www.google.de/patents/US6701588?utm_source=gb-gplus-sharePatent US6701588 - Pin lock
