... & crossing bolts, high tensile strength bolts for rail bridges etc.3, Various type and sizes of tie plates, ... dip galvanized6.packing: export carton and wooden pallet or wooden boxbolts and nuts 1.material:40Cr, 35CrMo ... .8,6.8,8.8,10.9, A2,A4 Inch.size: Gr2, Gr5,Gr8, A307Surface: SELF ... (TC bolt) Torshear type high strength bolts for steel structureMaterialAlloy steel ,carbon steel, stainless steel ...