HexagonalNuts Hexagonal
Nuts Plain WashersForm A Plain Washers
Form A Plain WashersForm B Plain Washers
Form B

Plain Washers – Form A

Standard flat washers ISO 7089 / DIN 125‑1(A) in mild steel, stainless steel and brass across sizes M3 to M12.

DiameterMild SteelMild SteelStainless A2Stainless A4Brass
Self colourZinc platedSelf colourSelf colourSelf colour
M3 + ✔ + ✔ + ✔ + ✔ + ✔
M4 + ✔ + ✔ + ✔ + ✔ + ✔
M5 + ✔ + ✔ + ✔ + ✔
M6 + ✔ + ✔ + ✔ + ✔ + ✔
M8 + ✔ + ✔ + ✔ + ✔ + ✔
M10 + ✔ + ✔ + ✔ + ✔
M12 + ✔ + ✔ + ✔ + ✔ + ✔

Related Technical Resources

More information

Form A plain washers (ISO 7089 / DIN 125-1A) are the standard flat washer used across engineering, construction and general-purpose assembly. They provide a smooth bearing surface, distribute load evenly and help prevent damage to the material being fastened.

Available in mild steel, stainless steel and brass, these washers cover the most commonly used metric sizes from M3 to M12. Zinc plated options offer additional corrosion protection, while stainless steel variants provide long-term durability in harsher environments.