S/S Bolt Kit - 12pt. (5) 3/8-16 x 1.750

The S/S Bolt Kit - 12pt. (5) 3/8-16 x 1.750 from ARP is a precision stainless steel fastener set engineered for demanding applications where corrosion resistance and load-bearing reliability are non-negotiable. This five-piece bolt kit serves tactical equipment builders, gunsmiths, and armorer professionals who depend on Grade 8.8 or equivalent fastening solutions in field-critical assemblies. Whether you're building AR platforms, assembling optic mounts, or securing chassis components, these bolts deliver the strength and durability required in high-stress environments.

Each bolt in this kit features 12-point geometry that reduces fastening tool wear and distributes load stress more evenly across the hex head surface—a critical advantage when working with precision receivers or hardened steel components where slip-off damage cannot be tolerated. The 3/8-16 UNC thread specification and 1.750-inch length make these bolts compatible with standard military and tactical hardware configurations, including upper receiver pins, scope ring bases, and rail system attachments. Manufactured from corrosion-resistant stainless steel, these fasteners resist salt-fog and moisture degradation, ensuring long-term integrity in field, training, or storage conditions without rust bloom or thread compromise.

Law enforcement, military, and civilian tactical builders rely on ARP fasteners for platform assembly and component replacement where failure is not an option. The 0.37-pound kit provides sufficient stock for multiple builds or replacement inventory, and the compact packaging (3.85 x 0.7 x 5.9 inches) fits easily in tool bags or shop storage. Verify thread pitch and shank diameter compatibility with your specific application before installation to ensure proper fit and clamping force.