A fastener which can be utilized with advantage as a bone screw or another osteosynthetic force transmitting member, instrument or accessory has a thread with two flanks each having a first section adjacent the crest and a second section adjacent the root of the thread. The second sections jointly include...http://www.google.com/patents/US5544993?utm_source=gb-gplus-sharePatent US5544993 - Threaded fastener
