China Rail Bolt Factory - High Strength Fasteners Compliant with EU EN 13481 & US AREMA - Trusted Suppliers
Basic Information
EU Standard Compliance
Conforms to EN 13481 and EN 14399. Made of Grade 8.8/10.9 high-strength alloy steel (M16 to M24). Suitable for 350km/h high-speed rails and 25t axle-load lines, compatible with Pandrol Fastclip and Vossloh SKL systems.
AREMA US Standard
Follows AREMA Chapter 5 rules. Employs Grade 5/8 carbon steel bolts for 40t axle-load heavy-haul freight lines, matching standard tie plate and pre-embedded sleeve dimensions.
Anti-Corrosion Coating
Adopts dacromet or hot-dip galvanized coatings, passing 1200+ hour neutral salt spray tests to adapt to extreme weather conditions ranging from -40℃ to 80℃.
Vibration & Safety
Features nylon insert and crimped point anti-loosening designs, successfully passing 3 million vibration cycle tests without loosening to guarantee safe operations.
Insulation & Custom sizes
Offers insulated coating versions (≥10MΩ resistance) to prevent signal interference. Custom dimensions and thread specifications are available for special projects.
Frequently Asked Questions
Which rail standards do these fastening bolts comply with?
They comply with European standards (EN 13481 and EN 14399) as well as North American standards (AREMA Chapter 5 specifications).
What materials and grades are available for EU and US markets?
For EU markets, Grade 8.8 and 10.9 high-strength alloy steel is used. For US markets following AREMA guidelines, Grade 5 and Grade 8 carbon steel bolts are used.
How do these rail bolts perform under extreme weather conditions?
With dacromet or hot-dip galvanized anti-corrosion coatings, the bolts pass 1200+ hour neutral salt spray tests and operate reliably in temperatures from -40℃ to 80℃.
What features prevent the bolts from loosening under train dynamic loads?
The bolts incorporate specialized anti-loosening designs, including nylon inserts and crimped points, which have passed 3 million vibration cycle tests without loosening.
Are there insulated options for transit lines to prevent signal interference?
Yes, insulated coating versions with an insulation resistance of ≥10MΩ are available specifically to avoid railway signal interference.
Can I order custom sizes and thread specifications?
Yes, we provide custom sizes and thread specifications to meet the specific requirements of your railway project.