This kit contains the following Titanium Hi Locks, Cone Washers and small Hex Nylock nuts. Use this kit on Tie Rod. 2ea. HIL500NF2125-TI Hi Lock 2ea. CONWASH500X312 Cone Wahser 2ea. NUTHF500-20SP Hex Flange Nut The nuts take a 9/16" wrench and the flange Dia. is 3/4" For installing these 1/2" Hilocks you will need to ream the hole to .480"-.485" for a press fit on the steering arms. Use Red Locktite on Hilock before pressing into hole.