Description
Technical Parameters
Rail Dog Spike Fastening System
The Railway Dog Spike is a traditional cut-spike fastener used to secure rail base plates or rails directly to timber sleepers. Forged from low-carbon or medium-carbon steel, it features a distinctive L-shaped head that provides leverage for driving and extraction. This spike achieves retention through threadless friction fit within pre-drilled sleeper holes. Its simple design enables rapid installation in conventional railway track construction.
Technical Specifications:
| Parameter | Specification |
|---|---|
| Product Type | Railway Dog Spike – Cut Spike Fastener |
| Material Grade | Low-carbon steel (ASTM A36 / Q235) or Medium-carbon |
| Surface Treatment | Black oxide / Hot-dip galvanized / Electro-galvanized |
| Nominal Length | 5.5 inch (140 mm) – 6.5 inch (165 mm) |
| Shank Diameter | 5/8 inch (16 mm) – 3/4 inch (19 mm) |
| Head Type | L-shaped dog head with offset gripping profile |
| Hardness Range | 80 – 95 HRB (body) / Case-hardened tip optional |
Installation & Maintenance Perspective:
- Relies on interference fit between spike shank and timber sleeper hole.
- Achieves holding capacity through radial compression of surrounding wood fibers.
- Provides gradual resistance withdrawal without sudden release during service.
- Accommodates minor track movement while maintaining rail alignment.
- Delivers consistent retention when driven to proper depth specifications.
Maintenance & Operational Perspective
- Manufactured from low-carbon steel for ductility during driving operations.
- Case-hardened surface increases wear resistance without compromising toughness.
- Protected with black oxide or galvanized coating for moisture resistance.
- Designed with controlled hardness preventing splitting of timber sleepers.
- Exhibits sufficient strength to resist bending during extraction attempts.
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