Category: Hardware Square M12/M16 Washers Sizes: – M12 13 x 50 x 50 x 3mm – M16 17 x 50 x 50 x 3mm Material: – HD Galvanised – Stainless Steel 304 – Stainless Steel 316 Description Related products Standard Galvanised Corner Soaker Read more Stainless & Galvanised Z Nails Read more Concealed Purlin Cleats (CPC) Read more