Product details:

ARP has developed some innovative multi-purpose accessory studs that feature a nut starter nose and a hex-broached tip for ease of installation that can be used for exhaust systems, intake manifold and a host of other uses. The studs are manufactured from a specially alloyed Stainless material developed (400-8037) by ARP that is rated at 180,000 tensile strength and are impervious to the rust and corrosion that plagues ordinary fasteners. The studs come with easy wrenching 12-point nuts and flat washers.