S/S Bolt Kit - 6pt. (5) 3/8-16 x 4.500

The S/S Bolt Kit - 6pt. (5) 3/8-16 x 4.500 from ARP is a vital fastening component designed for high-performance applications in engine assembly, machine shop work, and tactical equipment builds. This stainless steel bolt kit is engineered for environments where corrosion resistance and load-bearing integrity are essential, making it suitable for assembling rifle uppers, engine blocks, and precision machinery.

Each kit contains five stainless steel bolts with full hex heads and 6-point geometry, sized at 3/8-16 UNC with a shank length of 4.500 inches. The 6-point head design evenly distributes impact and rotational forces across the bolt face, minimizing the risk of stripping during installation and removal. The stainless steel construction offers superior corrosion resistance compared to standard plated carbon steel, making these fasteners ideal for outdoor tactical applications and environments with high moisture or salt exposure.

Professional armorers, gunsmiths, and military equipment technicians can rely on ARP fastener kits for critical builds where bolt failure is unacceptable. This kit is particularly beneficial for upper receiver assembly and other applications requiring deep-reach mounting scenarios common in AR-platform assembly and heavy machinery.