Hexagon bolts for steel constructions DIN 7990 TZN (Hot dip galvanized) M16x40 - 300 pcs M16x45 - 3000 pcs M16x50 - 600 pcs M20x40 - 650 pcs M20x45 - 150 pcs M20x55 - 1300 pcs M20x60 - 110pcs