Rail Dog Spike Fastening System
The Railway Dog Spike is a traditional forged fastener used to secure rails to wooden sleepers. Its offset head design provides an optimal striking surface for hammer installation. The smooth shank and chisel point penetrate timber fibers, creating friction-based holding power. Made from low-carbon steel, this cost-effective spike is ideal for branch lines, industrial sidings, and mine tracks where concrete sleepers are not used. Simple installation and removal make it a practical choice..
Technical Specifications:
| Parameter | Value | Unit |
|---|---|---|
| Material | Low carbon steel | Q235 or A36 |
| Length | 127 – 165 | mm |
| Shank Diameter | 16 – 19 | mm |
| Head Type | Offset dog shape | Asymmetrical |
| Point Type | Chisel or wedge | Sharpened |
| Finish | Black oiled or HDG | Optional |
| Pull-out Resistance | 8 – 15 | kN |
| Installation Tool | Spike maul | 4 – 5 kg |
| Standard | AREMA / BS / GOST | Various |
Installation & Maintenance Perspective:
- A spike maul drives the spike directly into untreated timber sleepers.
- Offset head transfers hammer force efficiently without bending the shank.
- Chisel point splits wood fibers rather than crushing them completely.
- No pre-drilling is needed for most softwood sleeper applications.
- Skilled workers can install over five hundred spikes per shift.
Maintenance & Operational Perspective
- Friction between shank and wood fibers resists vertical rail lift.
- Deformed timber cells create compressive grip around the spike body.
- Wedge-shaped head presses down on rail base during final hammer blows.
- Lateral rail movement is restricted by embedded shank in sleeper.
- Holding power depends on wood species and moisture content.
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