S/S Bolt Kit - 6pt. (5) 3/8-16 x 3.750

The S/S Bolt Kit - 6pt. (5) 3/8-16 x 3.750 from ARP is a purpose-built fastening solution for high-performance engine and drivetrain applications where reliability under extreme load is non-negotiable. Stainless steel construction and six-point head geometry make this bolt kit ideal for law enforcement, military, and tactical equipment builds that demand corrosion resistance and secure clamping force in demanding field conditions. This five-piece kit covers critical fastening points where standard hardware would fail under vibration, thermal cycling, or dynamic stress.

Each bolt measures 3/8-16 x 3.750 inches—a metric indicating 3/8-inch diameter with 16 threads per inch and 3.750-inch length—engineered to provide maximum surface contact and load distribution in critical assemblies. The six-point head design (compared to four-point or socket head alternatives) distributes torque more evenly across the fastener, reducing risk of stripping and extending fastener life under repeated assembly and disassembly cycles common in tactical equipment maintenance. Stainless steel construction delivers superior corrosion resistance in wet, salty, or chemically exposed environments where standard steel hardware would degrade, ensuring long-term integrity without maintenance-induced downtime.

This kit serves operators, gunsmiths, and equipment manufacturers assembling or maintaining firearms, optic mounts, rail systems, and precision mechanical assemblies where fastener failure poses safety or performance risk. The five-piece quantity supports multiple installation points or provides backup fasteners for critical applications; always verify thread pitch (3/8-16) and length compatibility with your specific platform before installation. When torqued to manufacturer specification with a calibrated wrench, these bolts deliver the clamping force and vibration resistance required for mission-critical tactical gear that must perform reliably under real-world operational stress.