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The M12 Square Plate Washer 50 x 50 mm – Pack of 100 is a set of heavy-duty, square steel washers designed to enhance bolted connections in construction and fixings applications. Each washer features a central M12 hole and a large 50 mm by 50 mm plate to spread the load of a nut or bolt, reducing material stress and improving joint stability. Made from galvanised steel for corrosion resistance and durability, these square plate washers are suitable for use in timber, structural steelwork and general fastening tasks where a larger bearing surface is required to prevent pull-through or embedment.