Bolt Kit - 12pt 5pk 10mm x 1.25 x 45mm

The ARP Bolt Kit – 12pt 5pk 10mm x 1.25 x 45mm (MPN 673-1006) is a precision fastener set engineered for high-strength applications where reliability cannot be compromised. This five-pack of chromoly bolts features a 12-point head design that distributes load more evenly than standard hex heads, reducing the risk of fastener failure under stress. With a 10mm diameter, 1.25 thread pitch, and 45mm length, these bolts deliver the dimensional consistency and material integrity demanded in critical assembly work.

Constructed from chromoly steel and finished in black oxide, these fasteners resist corrosion while maintaining the tensile strength necessary for heavy-duty applications. The chromoly alloy provides superior fatigue resistance compared to standard steel, a critical advantage in components subjected to vibration and cyclic stress. The black oxide coating protects against rust and oxidation without adding significant thickness to the fastener, preserving critical tolerances. Each bolt is manufactured to tight specifications, ensuring consistent fit and proper clamping force across the entire kit.

This fastener set serves operators, builders, and technicians working on engine builds, transmission assemblies, suspension systems, and other high-performance mechanical projects where fastener quality directly impacts safety and durability. The 12-point head geometry allows more contact points with socket tools, reducing the likelihood of rounding compared to 6-point heads—a practical advantage when working in tight spaces or with worn tooling. The universal design makes these bolts compatible with standard fastener applications across diverse platforms.

ARP (Automotive Racing Products) has established itself as a manufacturer of premium fastening solutions for precision applications. The combination of chromoly material, black oxide finish, and 12-point head design positions this bolt kit as a reliable choice for builders and technicians who require fasteners that perform consistently under demanding conditions. The five-pack format provides enough material for typical assembly work while maintaining inventory efficiency.