This thru-hardened galvanised washer range is precision-engineered for superior performance in high-strength bolted connections. Manufactured from high-quality through-hardened steel, each washer delivers excellent load distribution and long-term durability, helping to minimise the risk of loosening, slip, or joint failure under dynamic or static loads. The robust design supports reliable clamping force, making these structural washers ideal for critical connections where safety, strength, and consistency are essential.

Featuring advanced surface treatments – including zinc-plated (Z/P), sherardized, self-colour (S/C), and galvanised (GALV) finishes – these washers offer outstanding corrosion resistance in demanding environments. They are suitable for use in construction, steel fabrication, infrastructure projects, bridges, industrial plants, and heavy engineering applications where high-strength friction grip (HSFG) and structural bolting systems are specified.

Designed and manufactured to key international standards such as DIN 6916, EN 14399-6, and ISO 7090, these washers ensure excellent compatibility with structural fasteners, HSFG bolts and nuts, and other metric fastening systems. Their precise geometry, controlled hardness, and superior surface finish provide a secure, reliable fit and consistent performance across a wide range of assemblies. Whether used on large-scale engineering projects or in everyday industrial and mechanical applications, these thru-hardened galvanised washers deliver a dependable, professional fastening solution that meets modern engineering and construction requirements.