China Rail Nut & Washer Suppliers | High-Performance Fasteners from Factory Compliant with EU & US Standards
Basic Information
These nuts and washers are critical fastening components in standard-compliant rail fastening systems, tasked with securing elastic clips, base plates and other parts to sleepers, maintaining stable clamping force on rails under long-term dynamic load from trains.
EU Market Standards
Grade 8.8/10.9 flange nuts matching EN 14399 standards, paired with flat steel washers and spring lock washers.
North American Specifications
Compliant with AREMA Chapter 5 specifications, requiring heavy-duty hex nuts and hardened flat washers for heavy-haul lines with up to 40t axle load.
Signal & Insulation
Insulated nylon-coated or full polymer washers for high-speed rail and urban transit lines, providing ≥10MΩ insulation resistance to avoid railway signal interference.
Anti-Corrosion Durability
Dacromet or hot-dip galvanized coating passing 1000+ hour neutral salt spray tests, adapting to extreme weather conditions from -40℃ to 80℃.
Anti-Loosening Design
Nylon insert and crimped point designs for nuts, passing 3 million vibration cycle tests without loosening to ensure operation safety.
Wide Compatibility
Fully compatible with mainstream Pandrol Fastclip, Vossloh SKL, and AREMA tie plate fastening systems, with customizable specifications for different anchor bolts.
Frequently Asked Questions
They comply with EN 14399 standards (Grade 8.8/10.9 flange nuts) for European markets, and AREMA Chapter 5 specifications (heavy-duty hex nuts and hardened flat washers) for North American heavy-haul lines.
The nuts utilize advanced anti-loosening designs, including nylon inserts and crimped points, which have successfully passed 3 million vibration cycle tests without loosening.
All products undergo strict anti-corrosion treatments, such as dacromet or hot-dip galvanized coatings, passing a 1000+ hour neutral salt spray test to withstand temperatures from -40℃ to 80℃.
Yes. Insulated nylon-coated or full polymer washers are available, providing ≥10MΩ insulation resistance to prevent railway signal interference on high-speed and urban transit lines.
They are fully compatible with mainstream systems, including Pandrol Fastclip, Vossloh SKL, and AREMA tie plate fastening systems, with customizable sizing options for different anchor bolts.