S/S Bolt Kit - 6pt. (5) 5/16-18 x .560

The ARP S/S Bolt Kit – 6pt. (5) 5/16-18 x .560 is a precision stainless steel fastener set designed for critical assembly and repair work in tactical, law enforcement, and military applications. This five-piece kit delivers the reliability demanded in mission-critical equipment where component failure is not an option. Whether you're maintaining AR platforms, precision rifles, or tactical gear systems, these bolts provide the corrosion resistance and dimensional accuracy necessary for consistent firearm performance and longevity.

Each bolt features a 5/16-18 UNC thread specification with a 0.56-inch length and 3/8-inch hex head, engineered to interface seamlessly with standard tactical hardware systems. The polished stainless steel construction resists rust, salt spray, and environmental degradation—critical in field conditions where corrosion can compromise zero, cycling reliability, or structural integrity. The 6-point hex head design distributes load evenly across fastening surfaces, reducing stripping risk during installation and removal compared to inferior fastener grades. At 0.17 lbs per kit, these bolts are lightweight yet robust enough to handle the clamping forces required in upper and lower receiver assemblies, rail systems, and optic mounting solutions.

Armorer-level technicians, gunsmiths, and field maintenance personnel benefit most from this kit's durability and precision fit. The universal compatibility of the 5/16-18 x .560 specification makes it invaluable for AR-15 builds, bolt carrier group maintenance, handguard installations, and equipment upgrades. Set of five ensures you have spares for field repairs or multiple assembly projects. For anyone serious about firearms maintenance or tactical equipment reliability, ARP's commitment to dimensional consistency and material quality makes this bolt kit an essential component in your armourer's toolkit.