S/S 12pt. Nut - 8mm x 1.25 (1)

The S/S 12pt. Nut - 8mm x 1.25 (1) from ARP is a precision stainless steel fastener engineered for high-performance engine assembly and critical mechanical applications. Designed for builders and technicians who demand reliability in demanding environments, this 12-point nut provides superior grip geometry compared to standard hex designs, reducing fastener slippage during installation and operation. Whether you're building a race engine, restoring a high-horsepower platform, or assembling precision machinery, ARP's quality-grade fasteners are trusted across motorsports and industrial sectors.

This nut features an 8mm diameter with a 1.25-pitch thread specification, providing optimal load distribution and vibration resistance in applications requiring tight tolerances. The 12-point head design allows engagement with standard 10mm drive tools, maximizing contact surface and minimizing corner rounding during assembly. Manufactured from stainless steel and polished to a smooth finish, the fastener resists corrosion, oxidation, and galling—critical properties in marine, automotive, and aerospace environments. The polished surface not only enhances durability but also reduces friction during installation, allowing for accurate torque specifications and consistent clamp load.

Professional engine builders, automotive restoration specialists, and machinery assemblers rely on ARP fasteners for their superior tensile strength and finish quality. This individual nut is ideal for replacing worn or damaged fasteners, completing engine gasket sets, or assembling custom applications where OEM fasteners fall short. The stainless steel construction ensures long-term reliability in corrosive or high-temperature environments, while the 12-point geometry suits premium impact and torque-limiting tools common in professional shops. Always verify thread pitch compatibility with your application and refer to manufacturer torque specifications for proper installation.