12pt. Bolt - 7/16-20 x 1.550 Rod Bolt 2000

The ARP 12pt. Bolt 7/16-20 x 1.550 Rod Bolt 2000 is a premium connecting rod bolt engineered for high-performance engine builds where load capacity and reliability are non-negotiable. Manufactured from ARP2000 chromoly steel, this 12-point head fastener delivers the tensile strength and fatigue resistance required in forced-induction, nitrous oxide, or high-RPM naturally aspirated applications where stock hardware cannot survive repeated combustion cycles.

ARP2000 material provides superior strength retention at elevated temperatures compared to standard fastening solutions, critical for engines operating near maximum output. The 7/16-inch diameter with 20 TPI threading and 1.550-inch length are OEM-equivalent dimensions for applications requiring exact factory specifications. The 12-point head design accommodates standard 12-point sockets and wrenches, offering a mechanical advantage over 6-point alternatives when breaking torque in tight engine bay access points. Precision manufacturing ensures consistent clamp load when torqued to specification, preventing rod walk and maintaining bearing clearance under extreme acceleration.

This fastener is the choice for engine builders, high-performance shops, and motorsports competitors running tested-limit power outputs. Whether upgrading from marginal factory bolts on a supercharged platform or assembling a purpose-built race engine, ARP rod bolts maintain preload integrity across thermal cycles and sustained high-load operations. Sold individually; most engine builds require a complete set matching your specific rod configuration. Verify thread pitch and length compatibility with your engine's connecting rod before purchase.