8mm x 1.25 12pt. Nuts (10)

The ARP 8mm x 1.25 12pt. Nuts (10) are precision fasteners engineered for high-performance engine builds, race applications, and critical mechanical assemblies where reliability under extreme conditions is non-negotiable. These chromoly steel nuts deliver the strength and durability required by enthusiasts and professional mechanics who demand fasteners capable of withstanding sustained high loads, vibration, and thermal cycling. Available in a convenient 10-piece set, they are an essential component for custom engine work, transmission rebuilds, and any project requiring superior holding power.

Manufactured from chromoly steel and finished with black oxide coating, these 8mm x 1.25 nuts feature a 12-point head design that provides excellent tool engagement and reduces fastener rounding risk during installation and removal. The black oxide finish offers corrosion resistance and a professional appearance while maintaining excellent grip properties in high-stress applications. The 1.25 metric thread pitch ensures precise engagement with matching bolts, creating secure, uniform clamping force essential for engine applications where bolt preload directly impacts performance and reliability.

Professional engine builders, drag racers, and performance enthusiasts rely on ARP fasteners for critical applications where standard hardware cannot deliver the required strength margin. These nuts are ideal for cylinder head assemblies, intake manifold installations, and any precision application where repeatability and durability matter. The 10-piece quantity makes this set perfect for complete engine assembly projects, ensuring consistency across multiple fastening points and reducing the need for multiple orders during critical build phases.