... Railway Insert; Railway Anchor 4) Rail Clamp/ Clamp Plate; 5) Railway Cast Shoulder; 6) Track Spike, Screw Spikes, ... Material: Q235, 35#, 45#, 40Mn2, 20MnsiGrade: 4.6, 5.6, 8.8Surface: Plain (oil), black, zinc, hdg, ... samples.Raw Material: Q235, 20#Surface: Plain (oil) 5. T Bolt /Track Bolt/Fish Bolt/Square BoltType: All ... , 35CrMo, 40Cr, 42CrMo...Grade: 4.6, 4.8, 5.6, 8.8, 10.9, 12.9Surface: Plain (oil ...