MAX HEX racing nuts are made from stainless steel, CNC machined. CLEARCOATED finish. 12x1.25 thread (Nissan & FRS-BRZ Thread) Sold in a set of 20. For use with your 17mm deep socket. Compatible with our lug nut caps sold separately. Ends are threaded to accept colored caps which may interfere with extra long studs. *Always use copper anti-sieze on studs/nuts