All Custom AGE 625+ studs are centerless ground, heat treated prior to thread rolling and machining, and are nominally rated at 270,000 psi. These fasteners deliver a 50% increase in tensile strength over the OEM Torque to Yield (TTY) head bolts. Application: Toyota Supra 2JZGE/GTE 3.0L inline 6 (1993-98) ARP Head Stud Kit. Kit comes with Custom AGE 625+ (12) head studs, (12) parallel ground washers, and (12) 5740 Chrome Molly steel 12-point nuts needed for a direct bolt on, as well as the ARP moly-lube and instruction sheet.
