4mm Round End Feather Key For Drive Shafts, 25mm Length, A2 304 Stainless Steel Industrial Parallel Key, Heavy Duty, Corrosion Resistant, Built Tough For Smooth Power Transmission And Reliable Machinery Fit

Stainless Steel 4mm Round End Feather Keys 25mm Long
✔️ 20 Pcs A2 304 Stainless 4x4mm Heavy Duty Shaft Keys

These parallel keys fit into shaft keyways to lock pulleys gears and couplings in place for steady power flow in industrial machines.

✅ 4mm width with round ends slides easily into keyways
✅ A2 304 stainless steel resists rust and wear
✅ 25mm length fits common drive shaft setups
✅ Pack of 20 supports multiple repairs or builds

💡 What is a feather key used for in drive systems? They keep rotating parts locked to the shaft during operation. - Common in motors pumps and gearboxes for torque transfer - Stainless builds handle tough conditions without corrosion - Round ends speed installation in tight machinery spaces - Sized for secure fit that cuts slippage risks over time

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