Drive Spud 1/4-28

The Peterson Fluid Drive Spud 1/4-28 is a precision-engineered camshaft drive component manufactured in chromoly steel with black oxide finish. This compact fastener is designed for high-performance engine builds where camshaft timing accuracy and mechanical durability are critical, particularly in racing and custom engine applications where OEM camshaft drive systems are being upgraded or replaced with aftermarket performance components.

The 1/4-28 thread specification indicates a 1/4-inch diameter fastener with 28 threads per inch—a common standard for camshaft-related hardware in precision engine work. Chromoly steel construction delivers the tensile strength and heat resistance required for sustained high-RPM operation, while the black oxide coating provides corrosion resistance and reduces galling during installation. The compact 3-inch length and minimal 0.04-pound weight confirm this as a precision component designed for integration into tightly-toleranced engine assemblies.

This spud is ideal for engine builders, restoration specialists, and performance shops working on custom or modified powertrains. Whether replacing worn fasteners in a vintage build, upgrading an existing camshaft drive system, or completing a ground-up engine assembly, this Peterson Fluid component meets the mechanical specifications required for reliable operation. It is sold individually, allowing builders to purchase the exact quantity needed for their specific application.

Peterson Fluid Systems is recognized in the automotive and racing industry for precision fluid handling and engine support components. The Drive Spud 1/4-28 reflects that same commitment to material quality and dimensional accuracy, making it a dependable choice for builds where fastener reliability directly impacts engine performance and longevity.