Precision Brand metric zinc plated key steel KS5X8MM
Available
This Precision Brand zinc plated metric key steel comes in 6 sizes and is supplied in 300mm lengths, with the size marked on each piece. The sizes are 5 x 8, 6 x 10, 6 x 12, 6 x 14, 22 x 25 and 25 x 28mm.
The key steel is cold drawn C1020 to C1045 steel, zinc plated for rust prevention. Most dimension tolerances are oversized, so the key fits tightly in the keyway for positive, zero backlash power transmission.
Where this product is used
- Power transmission, where a key drives a pulley, coupling, propeller or drum from a shaft
- Keyway fitting by manufacturers and fitters
- Die setting
Features
- 6 sizes, from 5 x 8 to 25 x 28mm
- 300mm lengths, with the size marked on each piece
- Made from cold drawn C1020 to C1045 steel
- Zinc plated for rust prevention
- Most dimension tolerances are oversized for a tight keyway fit and zero backlash power transmission
Key specifications
| Specification | Detail |
|---|---|
| Brand | Precision Brand |
| Product | Rectangle key steel |
| Sizes | 6 sizes (metric) |
| Length | 300mm |
| Material | Cold drawn C1020 to C1045 steel |
| Finish | Zinc plated for rust prevention |
Choosing the right option
Match the key to the keyway on your shaft and hub, using the size in the options table. Rectangle key steel suits a keyway where the width and height differ. Imperial and metric keyways are not interchangeable, so check the unit on your shaft. Key steel is supplied in 300mm lengths and is cut to the length you need.
See also: Precision Rectangle Key Steel, Metric Steel - 7 x 8 to 22 x 40mm, Precision Square Key Steel, Metric Steel - 4 to 25mm, Precision Square Key Steel, Metric Stainless Steel 303/304.
| Option | Part number | SKU |
|---|---|---|
| 8 / 5 | KS5X8MM | A0105672 |
| 10 / 6 | KS6X10MM | A0105673 |
| 12 / 6 | KS6X12MM | A0105674 |
| 14 / 6 | KS6X14MM | A0105675 |
| 25 / 22 | KS22X25MM | A0105670 |
| 28 / 25 | KS25X28MM | A0105671 |
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Precision Metric Key Steel 300 mm Long - Zinc Plated: 8 / 5
SKU: A0105672 | Model: KS5X8MM
This is the 8mm width, 5mm height option of the Precision Metric Key Steel 300mm Long - Zinc Plated. Key details for this option: material C1020 to C1045 Steel, length 300mm.
Most tolerances on dimensions are oversized. Metric sizes are cold drawn C1020 to C1045 steel. Plated for rust prevention and sizes are clearly marked on each piece. Used in Power Transmission applications to drive pulleys, couplings, propellers & drums via a drive shaft.


