... ,12.Bolts and nuts:Mechanical Properties1, Material: 40 Cr.2, Tensile strength: Mpa quartile 1220 (magnitude 12.9) .3, Tension loading: ... etc. Product: BoltsStandard: DIN, JIS, ANSI/SAE/ASME, ISO, BS, AS standard.Diameters Metric: from M6 to M72, Inch. from ... according to customers' drawings and requirements. Product namefish bolts & nutsstandardASTM, BS, UIC864-1, JIS, GOST, DIN, AS, GB and so on ...