Ensure long-lasting security for your outdoor and structural assemblies with our Galvanised DIN 7980 Spring Washers. Engineered from tough spring steel and finished with a heavy-duty protective coating, these washers are built to withstand harsh weather conditions and resist corrosion far better than standard zinc plating. Featuring a square cross-section compliant with DIN 7980, they provide essential locking tension to prevent fasteners from vibrating loose in heavy machinery, fencing, and construction projects.
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When your project takes you outside the workshop and into the elements, standard fasteners are the first point of failure. Our Galvanised DIN 7980 Square Section Spring Washers are specifically designed to tackle this challenge. While standard BZP (Bright Zinc Plated) washers are suitable for indoors, they quickly succumb to rust when exposed to rain and humidity. These galvanised washers feature a much thicker, more robust coating of zinc that metallurgically bonds to the steel. This provides a rugged shield that can withstand years of exposure to changing weather conditions, making them the go-to choice for fencing, playground equipment, steel framework, and agricultural machinery.
Security is just as important as durability. The DIN 7980 specification ensures that these washers function as a high-performance locking mechanism. The washer is formed from a square wire profile coiled into a single split ring. As you tighten the nut, the split ends are forced together, flattening the washer. Because of the square profile, the washer exerts a higher stiffness and pressure compared to rectangular section washers. This stored "spring energy" pushes back against the nut, keeping friction high on the threads. This is vital for machinery that vibrates or timber structures that may expand and shrink with the seasons, ensuring the joint remains tight.
In the world of fasteners, matching your materials is critical. If you are using Spun Galvanised or Hot Dipped Galvanised bolts and nuts, you must use a Galvanised washer. Using a standard plain or BZP washer in this scenario can lead to rapid corrosion due to the difference in potential and the thinner coating of the washer failing early. These washers are sized and finished to pair perfectly with your galvanised fixings, ensuring that the integrity of the entire assembly is maintained. Whether you are bolting down a sleeper wall or securing a satellite dish, these washers provide the grip and the grit you need.
It comes down to the thickness of the protective layer. BZP (Bright Zinc Plated) is a thin layer for indoor aesthetics and mild protection. Galvanised coatings are much thicker and duller in appearance, designed specifically for outdoor use where they must resist rain and weather for many years.
It is not recommended. If you use galvanised washers with stainless steel bolts, the galvanised layer may sacrifice itself (corrode) very quickly due to galvanic corrosion. You should always try to match the washer material to the bolt material (e.g., Galv with Galv, Stainless with Stainless).
Yes, they are manufactured to DIN 7980 standards to fit standard metric bolts (e.g., M8, M10, M12). However, because galvanised coatings are thick, always ensure your bolts have enough thread length to accommodate the washer's thickness when compressed.
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Electro South West Ltd
Unit V Wylds Road, Bridgwater, Somerset
TA6 4BH
Company No: 04680424
VAT No: 586115332
