ARP Bolt Kit 1/2-20 x 4.500 Black Oxide 12PT

ARP Bolt Kit 1/2-20 x 4.500 Black Oxide 12PT (ARP Part #726-4500) is a precision-engineered fastener from ARP, the world leader in high-performance fasteners for the automotive industry.

This bolt kit features ARP's legendary quality and precision manufacturing. Each bolt is manufactured to aerospace standards with precise thread rolling and consistent heat treatment.

Every ARP fastener is precision CNC-machined from premium raw materials. The manufacturing process includes:

• Cold-forging for superior grain structure
• Precision thread rolling (not cutting) for maximum strength
• Heat treatment to exact specifications
• Magnetic particle inspection for quality assurance

Technical Specifications:

• Thread Size: 1/2-20
• Finish: Black Oxide

Applications: Ideal for high-performance street engines, racing applications, turbocharged and supercharged builds, and any application where fastener reliability is critical.

Trust ARP - the choice of professional engine builders and motorsport teams worldwide. When engine reliability matters, choose ARP.