... material: Q235.Surface: plain (oil) 4. Track bolt/ T bolt / Rail bolt/ Clamp bolt/ Inserted bolt/ Clip bolt ... 136RE, 115RE, and UIC54, UIC60, TJ57 fish platesRaw material: 45# .50#Surface: Plain (oil) 7. Clamp plate/ Rail ... : DIN, BS, AREMASize: above M16Raw material: Q235. 35# 45# 40Mn2, 20MnSi, 35CrMo, 40 Cr. 42CrMoGrade: 4.5, ... Fish bolt/Rail joint screw Rail bolt/T-bolt/Clip bolt/Clamp bol