Patent ID: 7334975

Claim:
A stud, comprising: a) a shaft that is fabricated from an alloy that includes nickel and provided with a trilobular shape; b) the shaft includes an axis, a first end, and a second end and is further provided with a threaded surface that includes a guide thread, a locking thread, and a conventional thread; c) the guide thread includes a guide means for guiding the threads on the shaft into mating alignment with a female thread of a female threaded member; d) the guide thread is generally located at the first end of the shaft and leads directly into the conventional thread; e) the conventional thread is provided with a generally Vee-shaped root provided with a first root diameter configured to mate with the female threads of the female threaded member so as to be capable of relative rotation; f) the conventional thread extends for a plurality of turns and is provided with a generally uniform shape; g) the conventional thread leads directly into the locking thread; and h) the locking thread includes a root surface provided with a second root diameter that is greater than the first root diameter, wherein the locking thread is configured to re-form the female threads to resist relative rotation between the shaft and the female threaded member.