5/16"-24 SS 12pt nut kit | 913400-8331

The ARP 12-Point Nut Set (400-8331) is made from ARP’s proprietary Stainless 300 material. This alloy is entirely immune to corrosion and extreme heat, making it an excellent choice for exposed areas of the engine or drivetrain where aesthetics and durability are equally important. The 12-point design is functionally superior to standard hex nuts in tight spaces, as it allows a socket to grip the nut more effectively even with limited clearance.

• Aerospace-Quality Material: Rated at 180,000 psi tensile strength, which is significantly stronger than standard Grade 8 hardware.
• Corrosion Resistance: The polished stainless steel finish won't rust or peel, maintaining a "show-car" look even in harsh environments.
• Compact 12-Point Head: The reduced wrenching size (requires a 3/8" socket) simplifies installation in cramped areas where a standard 1/2" hex nut wouldn't fit.
• Universal Utility: While often used for transmission pans or carb studs, these are universal 5/16"-24 nuts suitable for any high-stress application requiring that thread size.