... steel,brass 2.free sample 3.over ten years maker 5.certification: SGS,Rohs din 603 zinc plated grade 8 carriage bolt ... ,FOB,C&F,CIFsample lead time: within 7 days DescriptionGrade 2 Carriage BoltStandardDIN, ANSI, ASME, ASTM, IFI, JIS, ASMaterialLow carbon steel ... , DIN604, DIN608, ASME B18.5 etc. din 603 zinc plated grade 8 carriage bolt in hardware