carriage bolt 1.material: stainless steel,brass 2.free sample ... 5.certification: SGS,Rohs din 603 zinc plated grade 8 carriage bolt in hardwarematerial:steel ,stainless steel,brass,alloy steel , ... ,C&F,CIFsample lead time: within 7 days DescriptionGrade 2 Carriage BoltStandardDIN, ANSI, ASME, ASTM, IFI, JIS, ASMaterialLow carbon steel ... B18.5 etc. din 603 zinc plated grade 8 carriage bolt in hardware