Bordo
Bordo Metric Square Key Steel — 5mm Square
Part No: KSMS5
Bordo Metric square key steel in 5mm Square, cold drawn from carbon steel for a precision fit in standard keyways. Designed for locking pulleys, gears, couplings, and other rotating components to drive shafts with zero backlash. Supplied in 300mm lengths, gold dichromated for corrosion resistance and easy metric/imperial identification.
5mm Square
Square
Metric
300mm Length
Cold Drawn
Dichromated
Suitable For
Gearboxes
Pulleys
Couplings
Sprockets
Flywheels
Machine Shafts
Key Features & Benefits
- Cold drawn carbon steel — C1020–C1045 grade ensures consistent hardness and strength for reliable power transmission in keyway applications.
- Precision ground to tight tolerances — oversized dimensions ensure a positive interference fit in standard keyways, eliminating backlash and play.
- Gold dichromate finish — provides corrosion resistance during storage and makes metric sizes instantly identifiable on the workbench.
- 300mm standard length — sufficient for most shaft and coupling applications, easily cut to length with a hacksaw or bandsaw.
When to Use This Product
Use this 5mm Square metric square key steel when fitting or replacing the key in a shaft keyway to lock a pulley, gear, coupling, sprocket, or flywheel. Select the key size that matches the keyway slot machined into the shaft and hub. Key steel transmits torque between the shaft and the mounted component, preventing rotation and ensuring positive drive.
Authorised Australian Dealer — This product is sourced directly from Bordo Australia and is backed by full Australian manufacturer warranty and local support.
| Part Number | Size |
|---|---|
| KSMS4 | 4mm Square |
| KSMS5 ★ | 5mm Square |
| KSMS6 | 6mm Square |
| KSMS7 | 7mm Square |
| KSMS8 | 8mm Square |
| KSMS10 | 10mm Square |
| KSMS12 | 12mm Square |
| KSMS16 | 16mm Square |
| KSMS18 | 18mm Square |
| KSMS18 | 18mm Square |
| KSMS20 | 20mm Square |
★ You are viewing the highlighted variant. All sizes in this range are available at Alltools Geelong.
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