SKU: SMA-060-KS58 5/8 Inch Steel Key Stock for Agricultural Machinery Keyway Repairs

When you've got a worn keyway or need to repair a damaged shaft coupling, having the right key stock on hand can save you from expensive downtime. This 5/8 inch square steel key stock is the foundation for fixing loose pulleys, sprockets, and gears that won't stay put on their shafts. Instead of ordering a whole new part and waiting weeks, you can machine a custom key and get your equipment running the same day.

What You're Getting

• Precision-drawn square steel bar that machines cleanly without chipping or rough edges
• Full 12-inch length gives you enough material for multiple keys or one long keyway
• High-carbon steel construction provides the strength to handle heavy torque loads
• Cold-rolled finish ensures consistent dimensions and smooth surfaces for proper fit
• Universal 5/8 inch size fits common agricultural shaft applications

Built for Real Farm Work

This key stock works perfectly for repairing PTO shafts, implement drives, and hydraulic pump couplings on tractors and farm machinery. Whether you're fixing a loose flywheel on your combine, securing a pulley on your hay baler, or repairing the drive coupling on your manure spreader, this steel gives you the strength to handle the job. It's the same material professional machine shops use for custom keyway work.

Made to Last

Quality key stock starts with the right steel, and this bar is made from high-carbon material that won't bend or shear under load. The cold-rolling process creates a smooth, precise finish that fits tight in keyways without binding or creating stress points. It machines beautifully with standard cutting tools and holds up to the vibration and shock loads that farm equipment dishes out.

Good to Know

You'll need a hacksaw, bandsaw, or cutoff wheel to cut keys to length, and a file or grinder to break the sharp edges. Most keyways require a slight taper on the key for easy installation and removal. Keep some extra pieces in your shop - there's nothing worse than having the right idea but being short on material when something breaks during harvest.