ARP 400-8302 12-Point Chrome Moly Steel Cylinder Head Nut

The ARP 400-8302 is a high-strength 12-point nut designed for cylinder head fastener applications. Precision-manufactured from 8740 chrome moly steel, this fastener delivers exceptional clamping force and reliability in demanding engine builds.

Key Features:

• Constructed from 8740 chrome moly steel with 180,000 psi tensile strength
• 12-point design allows easier installation in tight spaces with reduced wrench swing
• Black oxide finish provides corrosion resistance and professional appearance
• Engineered wall thickness optimizes strength and rigidity
• Manufactured to ARP's exacting quality standards for consistent torque values
• Single piece configuration

ARP fasteners are the gold standard in performance engine hardware, trusted by professional engine builders and racers worldwide. The 12-point nut configuration provides more contact points than standard hex nuts, reducing the risk of rounding and allowing for precise torque application in confined areas.