Fastener system comprising an externally threaded bolt and an internally threaded nut for the avoidance of cross-threading of the mating threads during assembly

摘要

A threaded fastener system, incorporating a bolt and a nut assembly, wherein the bolt has a threaded lead entry point 22 whose pitch 39 and helix angle are of a higher magnitude than that of those on the body/shank 21 of the bolt.