... /35Cr-Mo 2.Surface:Black,ZP,HDG,Plain 3.Size:M5-160 4.Grade:8.8,10.9,12.9 Railway ... bolts and nuts10.9 with washer for steel structures I. Specification: GB 3632, DIN, ASTM, JIS, GOST and so on.II ... Factory view figures Packaging Factory viewTesting equipmentsWorkshop Welcome your visit! M5-160 Railway10.9 high tensile bolts and nuts