... 3) Raw material: Q2353. Screw Bolts and Nuts/ rail bolt/ inserted bolt 1) Type: To 115RE; 132RE fish plate supporting the ... plate matching the track bolts. Railway bolt: T bolt, HS26, HS32 series T bolt, turnout, hex bolt, flange bolt, subway Bolts. Nut: nylon nut, ... 40Cr; ect4. High Strength Fish Bolt/ clip bolt / clamp bolt / track bolt 1) Type: hex head, square head, flange head used DIN, BS, and ...