Designed for use with thick-hub wheels in drag and oval track racing, these extra long wheel studs are required by most sanctioning bodies. They are manufactured from high-grade SAE 8740 steel to withstand shear loads of 190,000 psi (exceeds Grade 8 specs) and feature quick start dog ends for easier starting of lug nuts. .NoteDo not use these studs with wheel spacers Stud length is measured from knurl base to stud end