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China Screw Spike Suppliers - High Shear Strength Rail Fasteners from Reliable Factory for Global Railway Applications
Basic Information
These screw spikes, also called threaded rail spikes, are core anchoring components of EU/US standard compliant rail fastening systems, designed to firmly lock base plates, elastic clip assemblies and other parts to pre-embedded sleeves in concrete sleepers, preventing displacement of the whole fastening system under repeated dynamic train loads.
EU Market Specifications
- Conforming to EN 13481-2 and EN 14399 specifications.
- Forged from Grade 4.8/8.8 high-carbon steel.
- Standard metric thread sizes ranging from M16 to M27.
- Suitable for 350km/h high-speed rails and 25t axle-load heavy-haul lines.
- Fully compatible with mainstream Pandrol Fastclip and Vossloh SKL fastening systems.
North American Specifications
- Following AREMA Chapter 5 regulations.
- Standard imperial size spikes with 5/8’’ to 1’’ diameters.
- Matches AREMA specified pre-embedded sleeves and tie plates.
- Supports up to 40t axle-load heavy-haul freight lines.
Technical Performance
- Minimum shear strength of 750MPa.
- Passes 5 million dynamic load cycle tests without fracture or permanent deformation.
- Guarantees over 30 years of service life.
- Adapts to extreme working environments from -45℃ alpine areas to 75℃ desert regions.
Coating & Insulation
- Treated with dacromet or hot-dip galvanized anti-corrosion coatings.
- Passed 1200+ hour neutral salt spray tests.
- Insulated coated versions for electrified lines provide ≥12MΩ insulation resistance.
- Custom thread specifications, lengths, and surface treatments available.
Frequently Asked Questions
Q:
What standards and specifications do these screw spikes comply with?
They comply with EU standards (EN 13481-2 and EN 14399) and North American standards (AREMA Chapter 5 regulations).
Q:
What are the available thread sizes and materials?
For EU markets, they are forged from Grade 4.8/8.8 high-carbon steel with standard metric threads from M16 to M27. For North American markets, they feature standard imperial sizes with 5/8’’ to 1’’ diameters. Custom thread specifications are also available.
Q:
What is the expected service life and mechanical strength of these spikes?
These spikes guarantee a service life of over 30 years. They have a minimum shear strength of 750MPa and pass 5 million dynamic load cycle tests without fracture or permanent deformation.
Q:
How do they withstand extreme weather and corrosive environments?
They are treated with dacromet or hot-dip galvanized anti-corrosion coatings, passing 1200+ hour neutral salt spray tests, and can adapt to working temperatures ranging from -45℃ to 75℃.
Q:
Are there options available for electrified railway lines?
Yes, insulated coated versions are available for electrified lines, providing ≥12MΩ insulation resistance to prevent railway signal interference.