... 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 Size ... Usage: fasten for machines,parts, railway,buildings,bridges etc.3) Payment terms: TT or LC4) Delivery date: Within ... according to your print. galvanized steel bolts,nuts and washers