Square Steel Key for 5/16 Inch Shafts SKU: QT2679

When a square key shears or wears out, your flywheel, pulley, or gear loses its grip on the crankshaft, causing dangerous slippage and potential equipment damage. This precision-cut steel key restores the solid connection between shaft and driven component that your engine or equipment depends on.

Why This Key Matters

• Exact 5/16 x 5/16 inch dimensions ensure proper fit in standard keyways
• High-strength steel construction resists shearing under normal operating loads
• Precision machining eliminates wobble and maintains proper component alignment
• Universal fit for most engines and equipment with 5/16 inch keyway specifications

A reliable key prevents costly damage to expensive flywheels, pulleys, and shafts. When equipment starts slipping or making unusual noises, check the key first - it's often the simplest fix that saves the biggest repair bill.