China Rail Bolt Factory: High Strength Fasteners Complying with EU EN 13481 & US AREMA Standards - Suppliers of Quality Components
Basic Information
These bolts are core load-bearing fastening parts of EU/US standard compliant rail fastening systems, tasked with securing elastic clips, base plates and other components firmly to concrete or wooden sleepers, maintaining stable clamping force of the whole fastening system under long-term dynamic train loads.
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EU/EN Standards
Conforming to EN 13481 and EN 14399, Grade 8.8/10.9 high-strength alloy steel, M16 to M24 thread sizes for 350km/h high-speed rails.
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North American AREMA
Following AREMA Chapter 5 rules, Grade 5/8 carbon steel for 40t axle-load heavy-haul freight lines with unified thread specifications.
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Anti-Corrosion
Dacromet or hot-dip galvanized coatings, passing 1200+ hour neutral salt spray tests for extreme weather (-40℃ to 80℃).
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Safety Design
Anti-loosening designs (nylon insert/crimped point) passing 3 million vibration cycles and insulated versions (≥10MΩ).
For EU markets, the bolts are 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. Grade 8.8/10.9 high-strength alloy steel ensures durability. For North American markets, unified thread specifications match AREMA standard tie plate and pre-embedded sleeve dimensions. All products adopt anti-loosening designs and insulated coating versions are available for high-speed rail and urban transit lines to avoid railway signal interference. Custom sizes and thread specifications are provided for special project demands.
Frequently Asked Questions
What standards do these rail bolts comply with?
The bolts comply with EU standards (EN 13481 and EN 14399) and North American AREMA Chapter 5 specifications for rail fastening systems.
Are these bolts suitable for high-speed railways?
Yes, they are designed for high-speed rails reaching speeds of up to 350km/h and are compatible with Pandrol Fastclip and Vossloh SKL systems.
What materials and grades are available?
We provide Grade 8.8/10.9 high-strength alloy steel for EU markets and Grade 5/8 carbon steel for North American heavy-haul freight lines.
How do the bolts perform in extreme environments?
With dacromet or hot-dip galvanized coatings, they pass 1200+ hour salt spray tests and operate reliably in temperatures from -40℃ to 80℃.
Do you offer anti-loosening or insulation features?
Yes, we provide nylon inserts and crimped points for vibration resistance, plus insulated versions with ≥10MΩ resistance for signal safety.
Can I request custom sizes for my project?
Absolutely. We provide custom sizes and thread specifications to meet the unique demands of specific railway construction projects.









