... 3.over ten years maker 5.certification: SGS,Rohs din 603 zinc plated grade 8 carriage bolt in hardwarematerial:steel ,stainless ... Length3mm-160mm, 1/8”-12”ThreadMetric, UNC, , BSWFinishPlain, Galvanized, Black, H.D.GPackingCarton, Box, Bag, Pallet Shipment TermsFOB,C&F,CIF ... AssuranceISO 9001SpecificationDIN603, DIN604, DIN608, ASME B18.5 etc. din 603 zinc plated grade 8 carriage bolt in hardware