... fasteners,such as fishplates,rail clips,rail clamp,screw spikes,rubber tie pllates,nut&bolts ... 40Cr; ect4. High Strength Fish Bolt/ clip bolt / clamp bolt / track bolt 1) Type: hex head, square head ... .PR401.PR309. 2) Raw material: 60Si2MnA7. Rail clip/Tension clamp 1) Type: SKL1, SKL3, SKL12, SKL14 2) ... 7.ZG25.ZG35.ZG45 3) Surface: plain11. Clamp plate/rail clamp/anchor plate 1) Type: KPO3, KOP06, ...