This One Nut Stud Kit is for frames with 1/2-20 threaded frame bungs and threaded lower front axle shock mounts. Forged hex in middle with rolled threads. Thread length is 7/8" on frame end of stud. Frame end of stud has 7/32 hex broached in the end for easy removal. Kit contains the following P/N's 6ea TD501-750 Titanium One Nut Stud TD501-750 6ea ST364-820G5 Steel Grade 5, 1/2-20 Nylock Nut - Shear