3/8-24 SS 6pt Nut 1pk

The 3/8-24 SS 6pt Nut 1pk by ARP is a critical fastening component engineered for high-performance automotive applications where reliability and precision matter most. Whether you're assembling a custom engine build, securing critical drivetrain components, or restoring a classic vehicle, this stainless steel hex nut delivers the dependable clamping force professionals demand. ARP (Automotive Racing Products) has built its reputation on producing fasteners that withstand extreme pressures, vibration, and temperature cycles—making this nut an essential choice for serious automotive enthusiasts and professional mechanics.

Manufactured from 300M stainless steel, the 3/8-24 SS 6pt Nut features a six-point design that distributes load evenly across the fastener's contact surfaces, reducing stress concentration and minimizing the risk of stripping or thread damage during installation. The 3/8-inch diameter with a 24 threads-per-inch pitch (3/8-24) specification ensures compatibility with ARP studs and bolts commonly found in engine block assemblies, cylinder head applications, and transmission mounting points. The stainless steel construction provides superior corrosion resistance compared to standard zinc-plated hardware, extending service life even in moisture-prone environments or vehicles exposed to road salt and harsh weather conditions.

This single-pack nut is ideal for builders and mechanics replacing damaged fasteners, upgrading stock hardware on engine builds, or completing ARP fastener kits designed for high-horsepower applications. The lightweight design (0.02 lbs per unit) ensures negligible mass impact while maintaining exceptional tensile strength and fatigue resistance. When paired with corresponding ARP bolts and studs, the 3/8-24 SS 6pt Nut creates a complete fastening system engineered to handle supercharged, turbocharged, and naturally aspirated performance engines where vibration and load cycles demand zero compromise.