Hexagonal socket head screw assortment in steel case 400 pieces affix 49 0129 p this 400 piece hexagonal socket head screw assortment in steel case features 12 different types of socket head screws to din 912 ranging from m5 to m10 galvanised this excellent range comes supplied in a protective steel case p affix hex socket head screw assortment in steel case 400 pieces