8mm x 1.25 12pt. Nut (1)

The 8mm x 1.25 12pt. Nut is a precision fastener engineered for high-performance engine and drivetrain applications where reliability and durability are non-negotiable. Manufactured by ARP, a leader in fastener technology, this chromoly nut is designed for builders and technicians who demand superior strength in critical assembly points. Whether you're rebuilding a performance engine, upgrading a transmission, or securing high-vibration components, this fastener delivers the clamping force and corrosion resistance required in demanding automotive and motorsport environments.

Constructed from chromoly steel and finished in black oxide, the 8mm x 1.25 12pt. Nut combines material strength with corrosion protection. The 12-point head design provides multiple engagement angles, reducing the risk of rounding and allowing smoother operation with standard sockets and wrenches. The 1.25mm thread pitch is metric-standard, ensuring compatibility with OEM and aftermarket fastener systems across a wide range of applications. Black oxide plating enhances fatigue resistance while protecting against rust and oxidation in engine bays, undercarriage environments, and high-temperature zones. Each nut is individually packaged and ready for immediate installation.

This fastener is ideal for performance engine builds, transmission assemblies, suspension tuning, and any application where metric 8mm fastening is specified. Technicians working on modified engines, racing platforms, or precision machinery benefit from ARP's reputation for consistency and quality control. The 12-point configuration is particularly valuable in tight spaces where torque wrench access is limited. Pair this nut with matching ARP studs or bolts for optimized clamping, and always refer to manufacturer torque specifications for your specific application to ensure proper preload and safety.