... , 45#, 40Mn2, 20Mnsi, 35CrMo, 40Cr, 42CrMo 5) Surface: plain (oil), black paint, color paint, zinc, hdg; ect5. Spring Washer/Lock washer ... spring washer 3) Raw material: 60Si2Mn, 65Mn, 70#. 4) Surface: black, zinc, plated, hdg6. E clip /Rail anchor 1) Type: e1609 ... , SKL14 2) Raw Material: 38Si7, 60Si2CrA 3) Surface: plain (oil); black paint; color paint; zinc; hdg; etc8. Screw spike/sleeper screw ...