Precision Brand metric stainless key steel, 4 x 4mm
Available
This Precision Brand metric stainless steel square key steel comes in 10 sizes and is supplied in 300mm lengths, with the size marked on each piece. The sizes are 4 x 4, 5 x 5, 6 x 6, 7 x 7, 8 x 8, 10 x 10, 12 x 12, 14 x 14, 16 x 16 and 20 x 20mm.
The key steel is made from 303/304 grade stainless steel. 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
- Shafts and keyways where rust is a concern
Features
- 10 sizes, from 4 x 4 to 20 x 20mm
- 300mm lengths, with the size marked on each piece
- Made from 303/304 grade stainless steel
- Most dimension tolerances are oversized for a tight keyway fit and zero backlash power transmission
Key specifications
| Specification | Detail |
|---|---|
| Brand | Precision Brand |
| Product | Square key steel |
| Sizes | 10 sizes (metric) |
| Length | 300mm |
| Material | 303/304 grade stainless steel |
Choosing the right option
Match the key to the keyway on your shaft and hub, using the size in the options table. Square key steel suits a keyway where the width and height are equal. 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 Square Key Steel, Imperial Stainless Steel 303/304, Precision Square Key Steel, Metric Steel - 4 to 25mm, Precision Rectangle Key Steel, Metric Steel - 7 x 8 to 22 x 40mm.
| Option | Part number | SKU |
|---|---|---|
| 4 x 4mm | KS4X4MMSS | A0154779 |
| 5 x 5mm | KS5X5MMSS | A0154776 |
| 6 x 6mm | KS6X6MMSS | A0154777 |
| 7 x 7mm | KS7X7MMSS | A0154778 |
| 8 x 8mm | KS8X8MMSS | A0154775 |
| 10 x 10mm | KS10X10MMSS | A0154782 |
| 12 x 12mm | KS12X12MMSS | A0154781 |
| 14 x 14mm | KS14X14MMSS | A0154783 |
| 16 x 16mm | KS16X16MMSS | A0154784 |
| 20 x 20mm | KS20X20MMSS | A0154780 |
Resources
Couldn't load pickup availability
Secure Checkout. We do not store credit card details
Precision Square Key Steel, Metric Stainless Steel 303/304: 4 x 4mm
SKU: A0154779 | Model: KS4X4MMSS
Used in Power Transmission applications to drive pulleys, couplings, propellers & drums via a drive shaft. Plated for rust prevention and sizes are clearly marked on each piece. Most tolerances on dimensions are oversized. Stainless steel made from 303/304 grade.