3/8 Stud - 4.600 Broached

The ARP 3/8 Stud - 4.600 Broached is a precision fastener engineered for high-performance engine assembly and critical structural applications where standard studs cannot meet demand. Designed for builders, engine shops, and performance enthusiasts who require superior clamping force and reliability, this broached stud delivers the consistency needed in demanding bolt-down scenarios. Whether you're building a race engine, assembling cylinder heads, or reinforcing critical joints, this ARP fastener provides the foundation for safe, repeatable performance.

Manufactured from premium chromoly steel and finished in black oxide coating, the 3/8 Stud - 4.600 Broached features a broached design that enhances grip and alignment during installation. The 4.6-inch length accommodates multi-stage applications where standard fasteners fall short, while the dual-thread configuration (available in 3/8-16 and 3/8-24 variants) allows flexibility across different engine platforms and specifications. Black oxide treatment provides corrosion resistance and a professional appearance, ensuring longevity even in harsh underhood environments. The broached geometry guarantees precise fit and reduced slippage under extreme clamping loads.

This stud is ideal for engine builders, performance shops, and serious enthusiasts restoring or modifying power plants where OEM fasteners compromise structural integrity or clamping uniformity. The universal design integrates seamlessly into custom builds and platform-agnostic applications. Installation requires standard fastener tools and ARP assembly lubricant (sold separately) to achieve proper preload specifications—critical for maintaining clamp load consistency across multiple fastening points. Weighing just 0.13 lbs per stud, it delivers maximum performance without adding unnecessary mass to your assembly.