The ARP 613-4500 Bolt is a high-performance auto parts product manufactured by ARP in the United States. This set of 5 bolts features a 3/8-16 inch thread size, a 4.5-inch length, and a 3/8-inch 12-point head. Designed specifically for racing applications, these bolts provide superior clamping force for improved cylinder head sealing and are a must-have for any performance engine build. ARP's reputation for quality and performance make these bolts a trusted choice for engine enthusiasts looking to upgrade their fastening hardware.
