Genuine ARP 203-4205 Cylinder Head Stud Kit for Toyota Supra 2JZ-GE / 2JZ-GTE 3.0L (1993–1998), also fits Lexus IS300, GS300, SC300 with 2JZ engines. Made in USA from premium 8740 chromoly steel, heat-treated to 200,000 psi, threads rolled after heat treatment. Kit includes 14 studs, 14 12-point nuts, 14 parallel-ground washers and ARP Ultra-Torque assembly lubricant. Brand new, factory sealed box.