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 |