One of the most critical – yet often overlooked – fasteners used in any engine locks the timing in place. ARP offers these premium grade studs, which are equipped with vibration-resistant J-form threads, in black oxide finished chrome moly or rust-proof stainless steel. A special bullet nose helps guide nut into place without crossthreading. Choice of conventional hex or space-saving 12-point nuts. Washers included. PartNumber : arp190-1701 Description : Distributr Stud Kit; 12Point Head Material : Black Oxide Engine Components::Hardware Kits - Other