Nut washer assortment in steel case 1800 pieces affix 49 0128 p this 1800 piece nut and washer assortment includes six popular sizes and is ideal for any tradesman or diy enthusiast the pieces are split into three 600 ranges each consisting of galvanised washers lock washers and hex nuts m4 to m12 and come supplied in a protective 18 compartment steel box p affix nut washer assortment in steel case 1800 pieces