Metric Flat Washers Zinc Plated Steel DIN 125 Form A ISO 7089 Fasteners
Always fit a washer beneath both the bolt head and the nut to protect the surface and maintain even clamping pressure.
Ensure the integrity and longevity of your mechanical assemblies with our premium-grade DIN 125 Form A metric flat washers.
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DIN 125 Form A / ISO 7089 Compliant
Dimensions manufactured to the DIN 125 Form A specification and its superseding ISO 7089 standard.
Zinc Plated Steel Construction
A durable carbon steel washer with a bright zinc plated finish, giving useful resistance to surface corrosion.
200 HV Hardness Class
Suitable for bolts, screws and nuts up to and including property class 8.8.
Even Load Distribution
The flat, wide bearing face spreads the clamping force over a larger area, reducing point loading and the risk of the joint working loose.
Complete Size Range M3-M36
The correct washer is available for small electrical and instrument fixings right up to heavy structural bolts.
Form A Flat Profile
A plain, non-chamfered washer for general-purpose use.
Technical Specification
| Material | Zinc Plated Steel |
| Standard | DIN 125 Form A / ISO 7089 |
| Hardness | 200 HV |
| M3 (InnerØ min-max/OuterØ min-max/Thickness) | 3.20-3.38mm / 6.64-7.00mm / 0.45-0.55mm |
| M4 (InnerØ min-max/OuterØ min-max/Thickness) | 4.30-4.48mm / 8.64-9.00mm / 0.70-0.90mm |
| M5 (InnerØ min-max/OuterØ min-max/Thickness) | 5.30-5.48mm / 9.64-10.00mm / 0.90-1.10mm |
| M6 (InnerØ min-max/OuterØ min-max/Thickness) | 6.40-6.62mm / 11.57-12.00mm / 1.40-1.80mm |
| M8 (InnerØ min-max/OuterØ min-max/Thickness) | 8.40-8.62mm / 15.57-16.00mm / 1.40-1.80mm |
| M10 (InnerØ min-max/OuterØ min-max/Thickness) | 10.50-10.77mm / 19.48-20.00mm / 1.80-2.20mm |
| M12 (InnerØ min-max/OuterØ min-max/Thickness) | 13.00-13.27mm / 23.48-24.00mm / 2.30-2.70mm |
| M14 (InnerØ min-max/OuterØ min-max/Thickness) | 15.00-15.27mm / 27.48-28.00mm / 2.30-2.70mm |
| M16 (InnerØ min-max/OuterØ min-max/Thickness) | 17.00-17.27mm / 29.48-30.00mm / 2.70-3.30mm |
| M18 (InnerØ min-max/OuterØ min-max/Thickness) | 19.00-19.33mm / 33.38-34.00mm / 2.70-3.30mm |
| M20 (InnerØ min-max/OuterØ min-max/Thickness) | 21.00-21.33mm / 36.38-37.00mm / 2.70-3.30mm |
| M22 (InnerØ min-max/OuterØ min-max/Thickness) | 23.00-23.33mm / 38.38-39.00mm / 2.70-3.30mm |
| M24 (InnerØ min-max/OuterØ min-max/Thickness) | 25.00-25.33mm / 43.38-44.00mm / 3.70-4.30mm |
| M27 (InnerØ min-max/OuterØ min-max/Thickness) | 28.00-28.33mm / 49.38-50.00mm / 3.70-4.30mm |
| M30 (InnerØ min-max/OuterØ min-max/Thickness) | 31.00-31.39mm / 55.26-56.00mm / 3.70-4.30mm |
| M33 (InnerØ min-max/OuterØ min-max/Thickness) | 34.00-34.62mm / 58.80-60.00mm / 4.40-5.60mm |
| M36 (InnerØ min-max/OuterØ min-max/Thickness) | 37.00-37.62mm / 64.80-66.00mm / 4.40-5.60mm |
