3/8-16 Stud 1.000 Long Broached

The ARP 3/8-16 Stud 1.000 Long Broached is a precision-engineered fastener designed for high-performance engine and drivetrain applications where reliability under extreme load and vibration is non-negotiable. Manufactured from chromoly steel with black oxide coating, this broached stud delivers the tensile strength and corrosion resistance demanded in motorsports, diesel engine builds, and performance automotive assembly where factory fasteners fall short.

This ARP AJ1.000-5B stud features a 3/8-16 thread size with 1.000-inch effective length and broached construction that ensures consistent thread geometry and superior clamp load retention. The chromoly material provides significantly higher tensile and yield strength compared to standard mild steel studs, critical for applications involving cylinder head fastening, intake manifold bolts, or custom engine work where peak cylinder pressure and thermal cycling demand uncompromising fastener performance. Black oxide finish offers baseline corrosion protection suitable for internal engine environments and protected installations.

Builders and engine shops rely on ARP studs for forced-induction engines, high-compression builds, and applications where fastener failure could result in catastrophic engine damage. The 1.000-inch length accommodates applications requiring precise stack-up in compact combustion chamber areas, head gasket combinations, or manifold-to-block interfaces. Individual stud purchase allows selective replacement or upgrade of critical fastening points without committing to full sets, making this ideal for custom engine assembly, repair, or targeted performance upgrades where selective component improvement drives results.