DIN 7643 - Steel zinc plated - A 4 = M 10x1 10.000 pcs. 2 deliveries of 5.000 pcs. DIN 7643 - Steel zinc plated - A 6 = M 12x1,5 20.000 pcs. 2 deliveries of 10.000 pcs. DIN 7643 - Steel zinc plated - A 8 = M 14x1,5x32 6.000 pcs. 2 deliveries of 3.000 pcs. Yellow or blue zinc plated