ARP 1/2in-20 12pt Nut (Single)

ARP 1/2"-20 12-Point Nut (Single) High-strength fastening for performance engines and critical assemblies. The ARP 1/2"-20 12-point nut is precision manufactured to ARP's exacting standards to deliver reliable clamping and a long service life. Thread size: 1/2"-20 UNF Head style: 12-point for compact wrench access and even torque distribution Finish: Corrosion-resistant plating for durability Pack: Single nut — ideal for repairs, custom builds, or spares Designed for automotive, racing, and industrial applications where strength and precision matter. Use with matching ARP bolts and studs to achieve proper preload and maintain assembly integrity under high loads and vibration. Why choose ARP? ARP hardware is engineered for consistency, fatigue resistance, and repeatable torque values — trusted by builders and engine shops worldwide.