5/16"-18 x 1.250" Underhead Length 12-Point Flanged Head

The ARP High-Strength 612-1250 is a universal 12-point bolt kit designed for applications requiring superior fastening strength and reliability. Each bolt in this kit features a flanged 12-point head for enhanced torque application and is constructed from ARP Stainless 300 material, renowned for its durability and corrosion resistance. These bolts boast a 5/16 in.-18 thread size and a 1.250 inch underhead length, with a polished finish for a clean aesthetic. With a rated tensile strength of 170,000 psi and an actual tensile strength of 180,000 psi, they offer a substantial safety margin over conventional Grade 8 hardware. The kit includes necessary washers and is designed to be used with a 3/8 inch wrench. This maintenance-free hardware is suitable for a wide range of uses on cars, boats, and trailers. The kit contains five bolts, making it a convenient option for various projects where high-strength fastening is crucial.