SKU: ARPAGN12-5CL
MPN: AGN12-5CL
The ARP 5/16-24 Large Flange Header Nut is a precision fastener specifically designed for high-performance engine applications. It is ideal for serious engine builders and technicians who require reliable fastening solutions for custom headers and intake manifolds. This nut is engineered to provide superior clamping force distribution, ensuring optimal performance even under extreme conditions.
Constructed from high-strength chromoly, this 12-point nut offers enhanced tensile strength and heat resistance compared to standard steel options. The large flange design helps distribute load across a wider surface area, which reduces stress concentration and prevents pull-through on softer materials. Additionally, the black oxide finish provides corrosion resistance while maintaining the integrity of the fastening surface.
This single-pack nut is perfect for engine builders, performance shops, and automotive enthusiasts engaged in assembling or rebuilding custom headers and intake systems. The 12-point head geometry allows for better tool engagement, minimizing the risk of rounding, especially in tight engine compartments. Whether you're restoring a classic engine or upgrading a high-performance build, this header nut is a reliable choice.
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