7/16-20 UNF stud in a three inch length for competition applications. The shaft is threaded all the way so can be trimmed for a perfect fit for your wheel and/or spacer combination. Will require machining the hubs & drive flanges, and possibly the wheels, but will provide the ultimate stregth for all out competion, or your turbo VTEC!
Lenght of shaft, not counting the head, 2.875". Lenght of threaded portion approx. 2.125"