Optimize your setup with ARP 613-1500 polished stainless steel 12-point bolts, engineered for 170,000 psi strength and superior corrosion protection. The 3/8-16 x 1.500" underhead length provides consistent load and easy access—great for intakes, accessories, or custom fab. Surpass standard bolts in every metric; made in the USA for elite durability.
