S/S Bolt Kit - 12pt. (5) 1/4-28 x .515

The ARP S/S Bolt Kit – 12pt. (5) 1/4-28 x .515 is a precision fastener solution designed for demanding tactical, law enforcement, and military applications where critical component assembly cannot tolerate failure. This five-piece stainless steel bolt kit addresses the need for reliable hardware in AR-pattern rifles, optic mounts, rail systems, and precision firearm builds where corrosion resistance and dimensional accuracy are non-negotiable.

Each bolt in this kit features 12-point drive geometry, which provides superior contact distribution across fastener heads and reduces the risk of stripping during installation or removal—a critical advantage in field conditions where tools may be worn or operator error is a factor. The 1/4-28 thread specification represents a common metric in AR platform construction, particularly for optic mount bases, rail sections, and receiver-mounted components. With a head engagement length of .515 inches, these fasteners are engineered to seat properly in counterbored or standard bolt holes, ensuring flush installation and positive mechanical advantage.

Operators and builders will appreciate the stainless steel construction, which provides inherent corrosion resistance, essential for systems exposed to moisture, salt environments, or extended storage without regular maintenance. This bolt kit is ideal for assembling duty rifles, building precision long-range platforms, or performing maintenance on existing systems, ensuring that quality bolts and fasteners form the foundation of a reliable weapon system.