1)Commodity:steel bolts and nuts 2)Grade:4.8,6.8,8.8,10.9,12.9 grade 3)Material:Q235,45#,35K ... ,40Cr,35CrMo,A3 4)Delivery:30days Commodity: steel bolts and nuts ... 1) Material: Q235,45#,35K,40Cr,35CrMo,A32) Usage: fasten for machines,parts, railway,buildings,bridges etc.3) Payment terms: TT ...