16Mm By 4Mm By 4Mm Carbon Steel Key Stock Keystock Gray 14 Pack Undersized Tolerance For Loose Fit In Keyways Precision Shim For Easy Insertion And Consistent Locking In Machinery Tooling And Engineering Applications

16x4x4mm carbon steel key stock, undersized 14-pack
✔️ Carbon steel key stock, gray finish, 16x4x4mm, 14 pcs, loose fit

These undersized tolerance key stock pieces are designed to fit keyways with a little slack for easy insertion and consistent locking in machinery and tooling. The 14-piece pack keeps keying projects consistent across multiple shafts and hubs in service and manufacturing environments.

✅ Pack size: 14 pieces in the set
✅ Size: 16 x 4 x 4 mm (0.63 x 0.16 x 0.16 in)
✅ Material: carbon steel, gray finish
✅ Undersized tolerance for loose keyway fit
✅ Used to form machine keys for torque transmission between shafts and hubs
✅ Common shapes include rectangular and square; step key stock for damaged keyways
✅ Suitable for machinery tooling, engineering, and industrial setups

💡 What is key stock used for in mechanical assemblies?

Key stock sits in a keyway to transmit torque between shafts and hubs. - Transfers torque in drive systems - Works with rectangular, square, or step key stock - Helps secure alignment and lock in operation