M8 x 40mm x 40mm x 5mm - this would be 40mm square and 5mm thick with a 8mm hole. Plated in Trivalent Chromium (Cr3) Zinc. Various sizes and quantities available. Provides a large clamping surface and therefore spreading the load of a fastening.
M8 M10 M12 M16 M20 SQUARE PLATE WASHERS 50mm x 50mm HEAVY DUTY THICK ZINC PLATED
A2 / A4 MARINE GRADE STAINLESS STEEL HEAVY DUTY THICK SQUARE PLATE WASHERS UK
M6 M8 M10 M12 M16 M20 THICK ZINC PLATED SQUARE PLATE WASHERS BZP 40x40mm 50x50mm
M6 M8 M10 M12 M16 M20 THICK ZINC SQUARE PLATE WASHERS 40x40mm, 50x50mm, 3mm 5mm
5 X SQUARE PLATE WASHER 40MM X 40MM WITH 12MM CENTRE HOLE
10 Pcs M8 Beveled Square Washers Thickness 2 to 5mm Wedge Washers Black