China Rail Bolt Suppliers - High Strength Fasteners Factory Complying with EU EN 13481 & US AREMA Standards
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.
Standards & Compatibility
Conforming to EN 13481 & EN 14399 for EU markets (Grade 8.8/10.9, M16-M24), compatible with Pandrol Fastclip and Vossloh SKL systems. Compliant with AREMA Chapter 5 for US markets (Grade 5/8 carbon steel).
Anti-Corrosion & Weathering
Adopts dacromet or hot-dip galvanized coatings, passing 1200+ hour neutral salt spray tests. Engineered to adapt to extreme weather conditions ranging from -40℃ to 80℃.
Safety & Anti-Loosening
Features nylon insert and crimped point designs. Successfully passed 3 million vibration cycle tests without loosening to guarantee long-term operation safety.
| Market Standard | Material Grade | Thread Specification | Application Suitability |
|---|---|---|---|
| EU (EN 13481 / EN 14399) | Grade 8.8 / 10.9 High-Strength Alloy Steel | M16 to M24 Standard Thread | 350km/h High-Speed Rails & 25t Axle-Load Lines |
| US (AREMA Chapter 5) | Grade 5 / 8 Carbon Steel | AREMA Standard Tie Plate & Sleeve Dimensions | 40t Axle-Load Heavy-Haul Freight Lines |
| Specialized Insulation | Insulated Coating Version | Custom Sizes & Threads Available | ≥10MΩ Insulation Resistance for Signal Protection |
Frequently Asked Questions
Q: Which international standards do these rail bolts comply with?
They are designed to comply with EU standards (EN 13481 and EN 14399) for European markets, as well as AREMA Chapter 5 specifications for North American railway markets.
Q: What fastening systems are compatible with these bolts?
These bolts are fully compatible with mainstream rail fastening systems, including the Pandrol Fastclip and Vossloh SKL systems.
Q: How do these bolts perform in extreme weather and corrosive environments?
All products feature advanced dacromet or hot-dip galvanized anti-corrosion coatings. They have successfully passed 1200+ hour neutral salt spray tests and operate reliably in extreme temperatures ranging from -40℃ to 80℃.
Q: What measures prevent these bolts from loosening under dynamic loads?
The bolts utilize specialized anti-loosening designs, including nylon inserts and crimped points, which have passed 3 million vibration cycle tests without loosening.
Q: Are there options available for systems requiring electrical insulation?
Yes, we provide insulated coating versions offering ≥10MΩ insulation resistance to prevent interference with railway signal systems, along with custom sizes for specific project requirements.