1/2-20 12pt. Nuts (2)

The ARP 1/2-20 12pt. nuts are precision-engineered fasteners designed for various mechanical assemblies where reliability under stress is crucial. These nuts are manufactured as a matched pair, ensuring consistent clamping force and structural integrity for builders and fabricators who prioritize fastener quality.

Each 1/2-20 nut features a 12-point head design that allows for multiple engagement angles, reducing the risk of rounding and stripping during installation and removal. The black oxide finish enhances durability and corrosion resistance, making these fasteners suitable for demanding environments.

These nuts are ideal for engine block assembly and any critical joint where vibration resistance and load retention are essential. Professional engine builders and performance shops appreciate the reliability of ARP fasteners, particularly when paired with ARP studs and bolts.