Description
Technical Parameters
Rail Dog Spike Fastening System
The dog spike is a one-piece steel fastener driven directly into timber sleepers using a hammer. Its distinctive bent head hooks over the rail base or bearing plate to prevent lateral movement. Made from low-carbon or medium-carbon steel, it relies on shaft friction and wood fiber compression for holding power. It remains standard for traditional rail tracks worldwide.
Technical Specifications:
| Parameter | Description | Typical Value |
|---|---|---|
| Steel grade | Carbon content range | 0.15% – 0.30% C |
| Shaft section | Cross shape | Square or rectangular |
| Shaft dimensions | Width × thickness | 16 mm × 16 mm |
| Overall length | Head to tip | 165 mm – 200 mm |
| Head bend angle | From shaft axis | 30 – 45 degrees |
| Head projection | Overhang beyond shaft | 18 mm – 22 mm |
| Weight per spike | Individual piece | 0.35 kg – 0.55 kg |
| Applicable sleeper | Wood species | Oak, Jarrah, Pine, Beech |
Installation & Maintenance Perspective:
- Hot-rolled from low carbon steel without expensive alloying elements added
- No quenching or tempering required reducing production energy costs significantly
- Bent head formed in single forging operation while shaft remains straight
- Surface left uncoated allowing natural rust to improve wood grip over time
- Reject spikes reheatable and reforgable without material property loss
Maintenance & Operational Perspective
- Loose spikes re-driven within seconds using ordinary track maintenance hammer
- Corroded spikes removed by levering bent head against hardwood block
- Replaced individually without disturbing adjacent fasteners or rail position
- New spike driven into same hole after plugging with treated wooden dowel
- Visual inspection by head angle indicates loosening before complete failure
Gnee Professional supplier
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