Titanium Stud 1/2 - 20 X 2 1/2" long with a broach. Mettec offers this 1/2" stud that screws into the steering arms and then you use a cone washer for proper spacing. Secure the stud with a half tall aluminum nylock nut on the back side of the arm. Use a steel nylock nut on the rod end (Heim Joint) side of stud. Minimum UTS 160Ksi (1103Mpa).