S/S 12pt. Nut - 10mm x 1.50 (1)

The S/S 12pt. Nut - 10mm x 1.50 (ARP 400-8345) is a precision stainless steel fastener engineered for high-reliability assembly and maintenance applications across tactical, military, and industrial platforms. This single-unit nut serves as a critical component in firearm builds, optics mounting systems, rail installations, and precision equipment where corrosion resistance and consistent clamping force are non-negotiable. Whether you're rebuilding a bolt carrier assembly, securing scope bases, or assembling AR platforms and bolt-action systems, this 12-point hex nut delivers the dependability professionals demand.

Manufactured from 300-series stainless steel in a natural finish, this nut resists oxidation and corrosion in field conditions, coastal environments, and extended storage without degradation. The 12-point head geometry distributes load more evenly than conventional 6-point designs, reducing stress concentration and enabling precise torque application without corner rounding—critical when working with aluminum receivers or securing threaded components to tight specifications. The 10mm metric thread with 1.50mm pitch ensures compatibility with standard international fastener standards, while the natural stainless finish maintains a professional appearance without additional coating that could chip or wear under tactical handling.

Law enforcement armorers, military personnel, and precision rifle builders rely on ARP fasteners for components requiring repeatable torque values and zero hydrogen embrittlement. This single nut is ideal for replacement, repair, or complete build scenarios where OEM specifications demand metric stainless fasteners. Install using standard metric wrenches or sockets rated for the 12-point head profile; always confirm torque specifications from your firearm or equipment manufacturer before final assembly. Lightweight at 0.02 lbs and compact in dimension, it stores easily in maintenance kits and repair bags for field operations or bench work.