The ARP stainless steel water pump pulley stud kit, 5/16-24 x 1.250 hex. This kit description specifies stainless-steel hex studs sized 5/16-24 by 1.250 inches intended for water pump pulley mounting applications. The overview summarizes the kit identity and the explicit stud size and form as provided in the source description.
ARP 5/16-24 X 1.250 SS Hex Water Pump Pulley Stud Kit