- Model NO.: all
- Bolt Grade: 4.8
- Specification: Ss5, Ss8, Ss25, Ss36
- Part: Rail Spike
- Trademark: JS
Screw spike/Sleeper screw/ Coach screw/ Drive screw/ Timber screw
Standard: ASTM, BS, GB and or according to customers' specifications.
Model: Ss5. Ss8. Ss25. Ss36.
Raw material: Q235, 35#, 45#, 40Mn2, 20Mnsi
Dia.: From M16 to M60Grade: 4.6/5.6/8.8
Finish: Plain, zinc plated, hot DIP galvanized, Dacromet, etc. Always assembly with double spring washer Fe6 or flat washer Uls7 and screw inserts.