HDG railway threaded spikes have a threaded nail body, which is tightly combined with the holes or fixings of the sleepers through the threads to provide stronger fixing force. The thread design allows the spikes to effectively lock the track, avoiding the loosening of the spikes or the displacement of the track due to vibration or pressure generated during train operation.
The structure of the threaded spikes makes installation and removal more convenient, and can ensure long-term fixing effect, reducing maintenance costs.
Screw Spike Size
| Grade | 4.6 | 5.6 | 8.8 | 10.9 |
| Material | Q235 | 35# | 45# | 40Cr |
| Mechanical properties | Tensile strength: ≥400Mpa | Tensile strength:≥500Mpa | Tensile strength:≥800Mpa | Tensile strength:≥1000Mpa |
| Yield strength:≥240Mpa | Yield strength:≥300Mpa | Yield strength:≥640Mpa | Yield strength:≥900Mpa |
| Elongation:≥22% | Elongation:≥20% | Elongation:≥12% | Elongation:≥9% |
| Cold bending: 90 degree without crack | Cold bending: 90 degree without crack | Cold bending: 90 degree without crack | Cold bending: 90 degree without crack |
| Surface | plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing |
| Standard refers | ISO898-1, UIC864-1, and NF F500-50 |
Since the threaded spikes can form a strong fixing force after installation, the HDG railway threaded spikes can effectively reduce the movement of the track, maintain the stability of the track position, and prevent the vibration and load generated during train operation from affecting the track.
High stability is particularly important for high-speed railways and heavy-load railways. Threaded spikes can ensure track accuracy and reduce safety accidents caused by loose spikes or uneven tracks.
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