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The Unifix Form A Washers DIN 125A are engineered for professionals and DIY enthusiasts requiring reliable load distribution in heavy-duty construction and assembly projects. These washers provide a secure, consistent fit for various fasteners, ensuring structural integrity across diverse applications. While they offer high-quality, compliant fastening performance, users should ensure they are selecting the correct metric size and hardness rating for their specific application, as improper sizing can negate the benefits of the washer's load-bearing design.
| Colour | Black |
|---|---|
| Model Part Number | 1317038 |
| Brand | Unifix |
DIN 125A refers to the German industrial standard for flat washers, which defines the specific dimensions and tolerances for Form A washers.
While suitable for many general applications, these black finish washers may require additional corrosion protection if used in environments with high humidity or exposure to salt air.
Select a washer that matches the nominal diameter of your bolt. For example, an M8 washer is intended for use with an M8 metric bolt.
HV140 refers to the Vickers hardness scale, indicating that the washer has a hardness value of 140 HV, suitable for general-purpose fastening.
If they have not been deformed or oxidized during use, they can be reused. However, for critical structural joints, it is recommended to use new hardware.
Verify that the fastener and washer share the same nominal metric size; if the bolt has a protective coating, a slightly larger washer may be required.
Ensure that the torque applied to the nut does not exceed the structural rating of the assembly and verify the washer is fully supported by the surface.
To ensure maximum effectiveness, always pair these washers with the appropriate metric fastener that matches the nominal diameter of the washer's hole. When installing, place the washer between the nut or bolt head and the surface of the material to protect against friction-related damage.
Regarding care, while the black finish provides a standard aesthetic, it is not inherently corrosion-proof in outdoor or marine environments. For projects exposed to high moisture or chemicals, check the assembly periodically for signs of oxidation. If signs of rust appear, the washers should be replaced to maintain the structural integrity of the joint.
