ARP 8740 alloy chrome moly steel high performance lower pulley bolt kit. They are rated at 180000 psi many times stronger than Grade 8 fasteners. These premium grade bolts are manufactured to exact tolerances heat-treated and thread rolled to ensure consistent clamping force strength and durability. 12-point head design with a stainless steel finish and come complete with washers and nuts where applicable. Made in the USA.SpecificationsFinish: Black oxideMaterial: ChromolyHead Style: 12-PointSocket Size: 3/8Thread Size: 3/8-16.
