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Description
Product information
M4 Form A Flat Washer
Essential stainless steel fasteners for a multitude of applications, a staple part of any toolbox and projects for decades. Stainless for a secure and long-lasting fastening solution that you can rely on with exceptional corrision resistance for strength and durability in the harshest environments making these perfect for the construction and automotive industry.
We also have a full range of sizes in stock here if this is not the size you are after.
Check out our full size range below in the specifications table.
| Inner Diameter | Outer Diameter | Thickness | Finish Grade | |
| M1.6 | 1.6 mm | 4 mm | 0.4 mm | A2 |
| M2 | 2 mm | 5 mm | 0.5 mm | A2 |
| M2.5 | 2.5 mm | 6.5 mm | 0.5 mm | A2 |
| M3 | 3 mm | 7 mm | 0.5 mm | A2 |
| M3.5 | 3.5 mm | 7 mm | 0.5 mm | A2 |
| M4 | 4 mm | 9 mm | 0.8 mm | A2 |
| M5 | 5 mm | 10 mm | 1 mm | A2 |
| M6 | 6 mm | 12 mm | 1.4mm | A2 |
| M8 | 8 mm | 16 mm | 1.4 mm | A2 |
| M10 | 10 mm | 20 mm | 1.9mm | A2 |
| M12 | 12 mm | 24 mm | 2.4 mm | A2 |
Key information
- Product type
- Form A Flat Washer Stainless Steel
- Brand
- Jones DIY
- Selected option
- M4 / 10
- Availability
- Available to order
Complete the job
Before you order
- Check the size, finish and pack quantity match your job.
- Check whether you need matching screws, washers, plugs or brackets.
- For repeat or bulk orders, review the trade account option before ordering.
Helpful next steps
Buying for regular work or bigger jobs?
If you order hardware regularly, a Jones DIY trade account can give you a clearer route for direct orders, trade pricing where suitable, and help with repeat supply.
Trade pricing where suitable
Bulk and repeat order support
VAT invoices
View trade account support