carriage bolt 1.Size : 6*65 ,6*70,6*90,6* ... : z.p, h.d.g, p.l . 3.Material : carton steel carriage bolt 1.Size : 6*65 ,6*70,6*90,6 ... .d.g , plain 3.Material : carton steel grade 4.8 , grade 8.8 and stainless steel 4.Character : its round head and its ... ” situation. Welcome clients at home and abroad to enquire! carton steel carriage bolts DIN603 bolts