Description
Technical Parameters
Core Specifications & Application Guide)
| Feature Category | Specification / Detail | Notes & Context |
|---|---|---|
| Product Name | Railway Screw Spike | Also known as Fang Bolt or Coach Screw. |
| Primary Function | Fastens rail baseplate to concrete/wooden sleeper. | Provides secure, adjustable, and reusable connection. |
| Common Standards | AREMA, EN 13481, GB/T, or Customer Drawing. | Ensures compliance with specific project requirements. |
| Thread Type | Square Thread / Trapezoidal Thread. | Optimized for high tensile load and anti-loosening. |
| Common Diameters | M24, M22, M20 are most frequent. | Diameter selection depends on design load. |
| Common Lengths | 150mm, 180mm, 200mm (Customizable). | Length is determined by sleeper type and assembly height. |
| Drive Type | Hex Head / Square Head. | Compatible with standard impact wrenches for efficient installation. |
| Material Grade | Q235B, 35# Carbon Steel, 40Cr. | Chosen for strength, toughness, and manufacturability. |
Performance Traits & Procurement Considerations
| Aspect | Description / Value Proposition | Implication for the Buyer |
|---|---|---|
| Key Advantage | Creates a strong, reliable, and maintainable connection. | Superior to dog spikes in heavy-haul or high-speed applications. |
| Anti-Loosening Mechanism | Thread design and controlled torque create mechanical lock. | Maintains clamping force under dynamic vibration, enhancing safety. |
| Corrosion Protection | Hot-Dip Galvanizing (HDG) is standard. Alternative: Mechanical Galvanizing. | HDG provides long-lasting protection for outdoor railway environments. |
| Quality Control | Dimensional checks, thread gauge inspection, and surface coating tests. | Guarantees consistent quality, easy installation, and long service life. |
| Installation Torque | Specific torque value provided per project specification. | Critical for achieving correct preload without damaging the spike. |
| Packaging | Bulk in 1000kg pallet boxes or smaller crates/bags. | Protects threads during transit and facilitates on-site handling. |
| End-Use Advantage | Allows for track adjustment and component replacement. | Reduces long-term maintenance costs and extends track system life. |
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