Nut- 12pt 10mm X 1.50 2pk

The ARP 300-8355 Nut – 12pt 10mm X 1.50 is a premium fastening component engineered for high-performance engine builds and critical mechanical assemblies. This two-pack of chromoly nuts delivers the material strength and precision required in applications where fastener reliability directly impacts system integrity. The 12-point head design enables faster engagement and disengagement with standard sockets while maintaining secure grip, and the black oxide finish provides corrosion resistance in demanding environments.

Built from chromoly steel, these fasteners offer significantly higher tensile strength than standard mild steel nuts, making them essential for applications subject to vibration, thermal cycling, or sustained mechanical stress. The 10mm bore diameter with 1.50mm thread pitch conforms to metric specifications, ensuring compatibility with matching bolt hardware. The 12-point configuration reduces the risk of rounding during installation—a critical advantage when working in tight spaces or with precision torque requirements where socket slippage can compromise fastener function.

Serious builders—whether assembling performance engines, fabricating structural components, or maintaining equipment subject to operational stress—depend on fasteners that won't fail under load. The two-pack format suits technicians and enthusiasts who prefer stocking verified fasteners for recurring maintenance or new builds. The black oxide coating resists surface corrosion and provides a professional finish while maintaining compatibility with standard metric tooling.

ARP is recognized in precision fastener manufacturing for producing components that meet or exceed OEM specifications. When fastener integrity matters—whether in engine rebuilds, custom fabrication, or critical mechanical assemblies—metric chromoly hardware with verified tensile properties eliminates guesswork and ensures repeatability across builds.