10 mm x 1.25 Stud 4.500 Long Broached

The 10 mm x 1.25 stud 4.500 long broached fastener from ARP is a precision-engineered component designed for high-stress applications in automotive, industrial, and tactical equipment assembly. Built to exact tolerances, this broached stud serves as a critical connection point where standard fasteners fall short—situations demanding repeatable clamping force and resistance to vibration-induced loosening. Whether you're building a race engine, assembling performance machinery, or maintaining military-grade equipment, this fastener delivers the reliability that separates professional-grade builds from amateur work.

Manufactured from chromoly steel and finished in black oxide, the 10 mm x 1.25 stud combines material science with precision broaching—a process that cuts threads directly into the fastener body rather than rolling them, resulting in superior thread integrity and load distribution. Chromoly's strength-to-weight ratio makes it ideal for high-cycle applications where aluminum or standard steel would fatigue prematurely. The black oxide coating provides corrosion resistance and reduces galling during installation, critical when working in demanding environments. At 4.5 inches in length, this stud bridges moderate-depth bores while maintaining structural rigidity; the broached design ensures that clamping loads remain consistent across the fastener's full engagement length.

Professional mechanics, firearms manufacturers, and equipment technicians rely on ARP studs for applications where fastener failure is not an option. The 10 mm x 1.25 thread pitch suits metric and hybrid specifications, making compatibility broad across platforms. Installation is straightforward: apply anti-seize compound to the stud, thread into the broached hole (or use with a matching nut on the opposing side), and torque to specification. This universal fastener integrates seamlessly into existing assembly protocols, reducing downtime and simplifying inventory management for shops and manufacturers managing mixed equipment portfolios.