Heavy Duty Railway Screw Spikes M16-M30 Track Bolts Hex Lag Screws

Heavy-Duty Railway Screw Spikes for Track Fastening Systems

Railway screw spikes (also known as track bolts or hex lag screws) are the backbone of modern rail fastening systems. Designed to secure rails to timber or concrete sleepers, our spikes provide superior pull-out resistance and vibration damping compared to traditional cut spikes.

As a specialized manufacturer, we supply M16 to M30 heavy-duty screw spikes compliant with ASTM, BS, and AREMA standards, ensuring safety for high-speed and heavy-haul railway projects.

                                                                                          Technical Specifications

Material & Corrosion Protection

Railway environments are harsh. We offer specialized treatments to ensure longevity:
Materials: We use high-tensile 40B or 35CrMo alloy steel, heat-treated to achieve a hardness of HRC 32-38, preventing thread stripping under high torque.
Hot Dip Galvanized (HDG): Standard for outdoor tracks (Zinc coating ≥45μm).
Dacromet / Geomet: Ideal for high-corrosion coastal areas (Salt spray test >1000 hours).
Epoxy Coated: Provides electrical insulation for signaling tracks.

Applications

Our screw spikes are engineered for critical infrastructure:
Railway Tracks: Fixing rails to timber sleepers and concrete beams.
Subway & Metro Systems: Vibration-damping fasteners for urban transit.
Crane Rails: Securing heavy-duty crane tracks in ports and factories.
Mine Tracks: High-strength fixing for underground mining railways.

How to Select the Right Railway Spike?

Choosing the correct spike depends on your sleeper material and load requirements:
For Timber Sleepers: Use Hex Head Screw Spikes with a coarse thread pitch for maximum grip in wood fibers.
For Concrete Sleepers: Use Shoulder Screws or spikes designed for pre-installed plastic dowels (sleeves).
For High-Vibration Areas: Select spikes with Nyloc patches or use spring washers to prevent loosening.

FAQ

Q1: What is the difference between a screw spike and a cut spike?
A screw spike has threads and a hex head, allowing it to be screwed in for higher holding power. A cut spike is smooth and hammered in, suitable only for light-duty timber tracks.
Q2: Do you provide test certificates?
Yes, we provide MTC (Mill Test Certificate) EN 10204 3.1 for every batch, verifying chemical composition and mechanical properties.
Q3: Can you manufacture spikes for specific rail profiles (e.g., UIC60, BS113A)?
Yes, we manufacture custom fasteners compatible with UIC, BS, DIN, and AREMA rail profiles.

Stop Worrying About Track Loosening and Corrosion

In railway engineering, a single failed fastener can lead to costly maintenance delays and safety hazards. Our Heavy-Duty Railway Screw Spikes are specifically engineered to combat the two biggest enemies of rail infrastructure: vibration and corrosion.
Whether you are operating in the high-humidity coastal zones requiring Dacromet coating or managing heavy-haul lines that demand high-tensile alloy steel, our fastening systems are designed to maintain clamp load under extreme dynamic stress. We understand that lead time is critical for track maintenance schedules. That's why we keep strategic stock of standard sizes (M20, M24) for immediate dispatch and offer rapid production slots for custom specifications.
Why risk your project's timeline with unreliable suppliers?
Superior Thread Rolling: Ensures a tight, vibration-resistant fit in timber and concrete sleepers.
Advanced Coating Tech: Up to 1000+ hours of salt spray resistance.
Rapid Response: Quotations within 24 hours.
Let's keep your trains running on time. Send us your technical drawings or standard requirements today.

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