Steelworks square key stock is a precision-machined steel bar used to lock a pulley, gear, sprocket, or hub onto a shaft so it transmits torque without slipping. Each 12" length cuts down to the exact key length your application needs, and the square profile drops directly into standard ASME B17.1 keyways.

• 1/2" square key stock, 12" long
• Machined to ASME B17.1 standard dimensions for a clean keyway fit
• Zinc-plated low-carbon steel resists surface rust before and after installation
• Standard pairing: shafts 1-13/16" to 2-1/4"
• Heavy industrial drives, large machinery, big gear hubs, and high-torque pump and compressor shafts
• Cuts to length with a hacksaw, bandsaw, or abrasive cut-off wheel

Tip: Inspect the keyway corners for radius before installing a 1/2" key; a stress crack at the corner can shear the key under heavy torque.