ISO 4762 / DIN 912 Need MQO for each size Material: 12.9 - zinc flake coating Hexagon socket head cap screw; 12.9; M 8 x 16 Hexagon socket head cap screw; 12.9; M 8 x 20 Hexagon socket head cap screw; 12.9; M 8 x 25 Hexagon socket head cap screw; 12.9; M 8 x 40 Hexagon socket head cap screw; 12.9; M 12 x 35 Hexagon socket head cap screw; 12.9; M 12 x 40 Hexagon socket head cap screw; 12.9; M 12 x 50 Only from stock in Europe.