Lock Pin 5/16 x 2.75

The Lock Pin 5/16 x 2.75 from ALLSTAR PERFORMANCE is a precision-engineered fastening component designed for securing mechanical assemblies in high-vibration and demanding environments. This steel lock pin serves as a reliable fail-safe mechanism in automotive, industrial, and equipment applications where component retention under stress is critical. Built to ALLSTAR PERFORMANCE standards, this lock pin is engineered for users who require dependable, repeatable fastening solutions that prevent accidental disassembly.

Manufactured from solid steel and finished with zinc oxide coating, the Lock Pin 5/16 x 2.75 offers corrosion resistance and durability in harsh conditions. The 0.313-inch outer diameter (5/16 inch) provides a precise fit in drilled holes, while the 2.75-inch length accommodates a wide range of assembly configurations. The zinc oxide finish protects against rust and oxidation, extending service life and reducing maintenance requirements. This design ensures the pin remains securely seated under thermal cycling, vibration, and impact loading typical of motorsports, agricultural, and industrial machinery applications.

Technicians and fabricators working on engine builds, chassis assemblies, and control linkages benefit from the consistency and reliability this lock pin delivers. Whether used in transmission housings, suspension components, or carburetors, the Lock Pin 5/16 x 2.75 prevents critical fasteners from backing out during operation. Installation is straightforward—simply insert into pre-drilled 5/16-inch holes and secure with cotter pins or lock-wire methods as appropriate for your application. Each pin is sold individually, allowing you to purchase only the quantity needed for your specific project or maintenance requirement.