China Rail Bolt Suppliers - High Strength Fasteners Compliant with EU EN 13481 & US AREMA Standards from Factory
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. For EU markets conforming to EN 13481 and EN 14399 specifications, the bolts are made of Grade 8.8/10.9 high-strength alloy steel, with standard thread sizes ranging from M16 to M24, 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. For North American markets following AREMA Chapter 5 rules, Grade 5/8 carbon steel bolts are required for 40t axle-load heavy-haul freight lines, with unified thread specifications matching AREMA standard tie plate and pre-embedded sleeve dimensions. All products adopt dacromet or hot-dip galvanized anti-corrosion coatings, passing 1200+ hour neutral salt spray tests to adapt to extreme weather from -40℃ to 80℃. Anti-loosening designs including nylon insert and crimped point are applied, passing 3 million vibration cycle tests without loosening to guarantee operation safety. Insulated coating versions are also available for high-speed rail and urban transit lines, with ≥10MΩ insulation resistance to avoid railway signal interference, and custom sizes and thread specifications are provided for special project demands.
Standards & Compatibility
Compliant with EN 13481, EN 14399, and AREMA Chapter 5. Fully compatible with Pandrol Fastclip and Vossloh SKL systems.
High-Strength Grades
Grade 8.8/10.9 high-strength alloy steel (EU) and Grade 5/8 carbon steel (US) for up to 40t axle-load lines.
Anti-Corrosion & Weatherproof
Dacromet or hot-dip galvanized coating. Passes 1200+ hour salt spray test, adapting to -40℃ to 80℃ temperatures.
Vibration & Insulation
Passes 3 million vibration cycles. Insulated coating versions offer ≥10MΩ resistance to prevent signal interference.
Frequently Asked Questions
What standards do these rail fastening bolts comply with?
The bolts comply with EU specifications (EN 13481 and EN 14399) and North American standards (AREMA Chapter 5 rules) to match unified tie plate and pre-embedded sleeve dimensions.
What steel grades and thread sizes are available?
We offer Grade 8.8 and 10.9 high-strength alloy steel with thread sizes from M16 to M24 for EU markets, and Grade 5 and 8 carbon steel bolts for North American markets.
Are these bolts compatible with mainstream rail systems?
Yes, they are fully compatible with mainstream rail fastening systems, including Pandrol Fastclip and Vossloh SKL systems.
How do the bolts perform against corrosion and extreme weather?
All products adopt dacromet or hot-dip galvanized anti-corrosion coatings, passing 1200+ hour neutral salt spray tests to adapt to extreme weather conditions ranging from -40℃ to 80℃.
What anti-loosening features do these rail bolts have?
They feature advanced anti-loosening designs, including nylon inserts and crimped points, which successfully pass 3 million vibration cycle tests without loosening.
Are there insulated versions available for transit lines?
Yes, insulated coating versions are available with ≥10MΩ insulation resistance to prevent railway signal interference on high-speed rail and urban transit lines.