S/S Bolt Kit - 12pt. (5) 5/16-18 x 3.000

The S/S Bolt Kit – 12pt. (5) 5/16-18 x 3.000 from ARP is a precision fastener assembly engineered for demanding tactical, law enforcement, and military applications where reliability under pressure is non-negotiable. This stainless steel bolt kit addresses critical assembly requirements in high-stress environments where standard fasteners fall short. Whether you're building or maintaining firearms, optics mounts, armor systems, or tactical equipment, this ARP bolt kit delivers the corrosion resistance and structural integrity required in field conditions.

Constructed from stainless steel with 12-point head geometry, this bolt kit features a 5/16-18 thread specification and 3.000-inch length, providing optimal engagement in applications requiring deep penetration or thick material clamping. The 12-point head design distributes load across more contact points than traditional 6-point hexagon fasteners, reducing the risk of stripping under torque—a critical factor in modular tactical systems subject to repeated assembly and disassembly. The 0.46 lbs weight per kit indicates this is a five-piece set, making it ideal for completing multiple assemblies or maintaining a complete spare inventory in the field. Stainless steel construction resists corrosion from sweat, moisture, and environmental contamination without sacrificing strength.

Tactical professionals and gunsmiths rely on ARP fastener kits for rail systems, receiver extensions, optics mounting blocks, and armor attachment points where fastener failure is not an option. The 5/16-18 thread pitch and 3.000-inch length make this kit compatible with standard AR-platform upper and lower receiver assembly, as well as aftermarket rail systems and mounting solutions common in modular weapon platforms. Installation requires standard 3/8-inch hex socket or wrench tools; proper torque specifications should follow manufacturer guidelines for your specific application to prevent over-tightening or stripping. This kit is sold for sale as a complete five-piece assembly, ready for immediate deployment or integration into your tactical maintenance and build inventory.