SKU: ARPAJN12-1
MPN: AJN12-1
The ARP 3/8-24 12pt. Nut - Black Finish is a precision fastener engineered for high-performance applications where reliability and strength are non-negotiable. Designed for use in motorsports, engine builds, and critical assembly work, this nut provides superior clamping force and security compared to standard fasteners. ARP's commitment to manufacturing excellence ensures consistent quality across every unit, making this a trusted choice for professionals and enthusiasts who demand the best in fastening solutions.
This 3/8-24 nut features a 12-point design that accommodates both metric and standard tooling, reducing the likelihood of rounding or stripping during installation and removal. The black finish provides corrosion resistance while delivering an aesthetically refined appearance in engine compartments and visible assemblies. ARP fasteners undergo rigorous tensile testing and quality control protocols to ensure they meet or exceed industry standards, delivering consistent performance in demanding environments where vibration and thermal cycling are present.
Ideal for cylinder head applications, intake manifold assembly, and other critical engine components, this nut pairs seamlessly with ARP studs and bolts for complete fastening systems. The compact 0.5-inch dimensions and lightweight 0.01 lbs profile make installation straightforward without compromising structural integrity. Whether rebuilding a high-horsepower engine or maintaining original equipment specifications, the ARP 3/8-24 12pt. Nut delivers the dependable performance that competitive builders and professional mechanics rely on.
WARNING ⚠️
You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
Purchasing a Firearm? Click HERE to see our firearm purchasing guide.