Woodruff Keys 25pk 3/16 x 1-3/8

Pioneer Woodruff Keys 25 Pack (3/16 x 1-3/8 inch) are precision-engineered steel fasteners designed to secure crankshaft components and prevent rotational slippage in engine assemblies. This 25-piece set delivers the exact profile and dimensions required for reliable key engagement in Pontiac V8 engines and compatible applications where woodruff key specifications match 3/16 x 1-3/8 dimensions.

Woodruff keys function as mechanical locks between a shaft and hub, preventing circumferential movement under rotational loads. The 3/16-inch width and 1-3/8-inch length of these Pioneer keys match OEM specifications for crankshaft applications where precise fit is critical to engine integrity. Natural steel construction provides the hardness and shear strength necessary to maintain positive engagement without deformation, even under sustained high-RPM operation. The 25-count quantity ensures adequate inventory for multiple engine rebuilds, restorations, or a well-stocked shop.

Engine rebuilders, hot rodders, and automotive technicians rely on woodruff key sets for crankshaft assembly, damper installation, and pulley attachment. Applications include V8 engine restoration, performance builds, and OEM replacement in vehicles where crankshaft component alignment cannot be compromised. Having a bulk set on hand eliminates delays when restoring period-correct engine assemblies or servicing multiple vehicles.

Pioneer is recognized for precision fastener manufacturing and OEM-compatible part production. This bulk 25-pack delivers reliable, repeatable quality for both professional shops and serious enthusiasts who demand exact dimensional and hardness specifications in critical engine components.