Engineered for demanding construction, engineering, and industrial environments, these heavy-duty square washers and square plates provide dependable support for secure bolted connections. Manufactured from high-quality steel, they are designed to spread clamping force over a wider surface area to help reduce bolt-hole deformation, minimise stress on joined materials, and improve the overall stability of structural fastening assemblies.

Suitable for applications such as structural steelwork, framework assembly, and heavy-duty machinery, the square profile helps deliver consistent load distribution where standard washers may not offer enough bearing area. With a choice of common protective finishes including zinc-plated (Z/P), self-colour (S/C), and hot-dip galvanised (H.D.GALV), they offer practical corrosion resistance options to suit indoor, outdoor, and harsh site conditions.

Designed to meet relevant industry standards, these square washers/plates are a reliable, long-lasting fastening solution for high-load environments—helping maintain fastening integrity and supporting strong, stable joints across a wide range of metric bolt sizes and plate thicknesses.