S/S Bolt Kit - 12pt. (5) 1/4-28 x .750

The S/S Bolt Kit - 12pt. (5) 1/4-28 x .750 by ARP is a premium fastener solution engineered for high-performance engine builds, competition platforms, and precision mechanical assemblies. This five-piece stainless steel bolt kit serves dedicated mechanics, engine builders, and tactical firearms enthusiasts who demand uncompromising reliability under extreme conditions. ARP bolts have earned their reputation across law enforcement armories, military shops, and competitive shooting circuits for their ability to maintain clamp load integrity in applications where standard fasteners fail.

Manufactured from 300M stainless steel, these bolts feature a 12-point head design that distributes load more evenly than traditional hexagonal fasteners, reducing stress concentration and minimizing galling during installation. The 1/4-28 thread pitch and .750-inch length make this kit ideal for precision applications requiring exact sizing—critical in firearm component assembly, engine block work, and load-bearing structural connections. ARP's proprietary manufacturing process ensures consistent tensile strength, material hardness, and dimensional tolerance, eliminating the common failure modes associated with inferior fasteners that can compromise weapon reliability or mechanical performance during duty cycles.

This bolt kit benefits gunsmiths, armorsmiths, small engine builders, and professional mechanics who refuse to compromise on fastener quality. Real-world applications include upper receiver assembly, optics mounting systems, rail attachment points, and any precision mechanical assembly where vibration resistance and corrosion immunity are non-negotiable. The stainless steel construction resists oxidation and corrosion in humid environments, making it particularly valuable for operators who store firearms or equipment in challenging climates or require weapons that maintain zero over extended operational periods. Installation requires standard 3/16-inch hex wrenches or 12-point sockets; always verify proper torque specifications for your specific application to ensure optimal clamping force and safety compliance.