... dip galvanized6.packing: export carton and wooden pallet or wooden boxbolts and nuts 1.material:40Cr, 35CrMo ... on.sizesAccording to clientsClassAccording to clientsShape of headSquare, or according to custmoers' requirementsSurface treatmentBlack, Hot-dip galvanization ... -200mmTensile strengthMax:1240Mpa, Min:1040Mpa.Yield strengthMin:940MpaGrade8.8 or 10.9StandardDIN, ANSI, ASME, ASTM, IFI, JIS, ...