Bolt Kit - 12pt. (5) 8mm x 1.25 x 60mm

The ARP Bolt Kit – 12pt. (5) 8mm x 1.25 x 60mm is a five-piece set of precision fasteners engineered for high-performance applications where reliability and material integrity are non-negotiable. Each bolt features a 12-point head design that distributes load across a wider contact surface, reducing stress concentration and enabling consistent torque application without slippage—a critical advantage in applications where fastener failure has operational consequences.

Manufactured from chromoly steel and finished in black oxide, these 8mm fasteners combine material strength with corrosion resistance. The 1.25 pitch metric thread and 60mm length are optimized for medium-duty assembly in automotive, motorsports, and mechanical systems where dimensional precision directly impacts functional performance. Chromoly offers superior tensile strength compared to standard steel, making these bolts suitable for applications involving vibration, thermal cycling, or sustained load—conditions where inferior fasteners would degrade or fail prematurely. The black oxide coating provides baseline protection against surface corrosion while maintaining a low-profile, non-reflective finish.

This kit serves motorsports enthusiasts, mechanical technicians, and operators maintaining systems where fastener reliability directly affects safety or performance. Whether securing engine components, transmission assemblies, or structural connections in race vehicles or high-stress mechanical builds, the combination of 12-point head geometry, chromoly strength, and corrosion-resistant finish delivers the margin of safety that demanding applications require. The five-piece quantity supports typical rebuild or repair workflows where redundancy accounts for installation loss or future maintenance cycles.