China Railway Ss35, Ss36 Screw Spikes Producer
Ss35 Screw Spike( with Uls7 flat washer) is also called Ss35 rail screw or Ss35 sleeper screw, it is the fasteners of W14 Rail Fastening System.
Ss35 Rail Spikes are used to fix the tie plate or fasten the rail to the concrete sleeper with the help of Sdu25 plastic dowel.
Ss35 Screw Spike( with Uls7 flat washer) is also called Ss35 rail screw or Ss35 sleeper screw, it is the fasteners of W14 Rail Fastening System.
Ss35 Rail Spikes are used to fix the tie plate or fasten the rail to the concrete sleeper with the help of Sdu25 plastic dowel.
1. Appearance
The surface should be smooth and clean, and the product identification should meet the requirements of the drawings.
2. Size
Spikes and flat washers meet the design requirements of drawings;
3. Mechanical properties of spike
Physical tensile: tensile strength ≥ 500 Mpa.
Bar test: tensile strength ≥ 500 Mpa, yield strength ≥ 300 Mpa, elongation ≥ 20%.
4. Cold bending performance of Ss35 rail spike
The crack depth of the threaded part after the 30° cold bending test is not greater than 1.0mm, and the anti-rust layer and the superficial layer of the base material are allowed to have slight peeling, wrinkles and cracks.
5. Anti-corrosion coating
Hot-dip galvanizing, Dacromet, galvanizing.
