What are railroad bolts made of?
Nov 06, 2025
Track bolt is a kind of widely used rail fastener. Track bolt is referred to as rail bolt, used to fasten rail joints to link rails or to fix the sleepers with rails. Track bolts sizes are changing along with the requirements of the rail section. The rail bolts can be classified into several types depending on their fastening ways and applications. Fish bolts, track bolt for rail fastening systems (clip bolt & clamp bolt), track bolts for fastening different running tracks and anchor bolts are four main varieties.
What are railroad bolts made of?
Railroad bolts are primarily made from carbon steel, with some high-strength variants using alloy steels like 40Cr, 42CrMo, or 35CrMo. The specific material depends on the application, with many standard bolts being made of lower-strength carbon steel like Q235, while more robust or high-strength versions are made of alloy or higher-grade steel to meet the strength requirements for securely fastening rails.
Common materials
- Carbon steel: This is the most common base material. Grades like Q235 are used for many standard bolts.
- Alloy steel: High-strength bolts are often made of alloy steels such as 40Cr, 42CrMo, or 35CrMo for increased durability and strength.
- High-strength steel: Specific grades are used for high-strength applications, with strength grades like 8.8 and 10.9 being common.
Track Bolt Specifications
| Product Name | High-Strength Bolts |
| HS Code | 7318159001 |
| Size Range | Length: 100-600mm, Diameter: 16-55mm |
| Standard | DIN, ANSI, GB, JIS, BSW, GOST |
| Grade | 8.8, 9.8, 10.9, 12.9 |
| Packaging | Bundles, Paper Boxs, Containers |
GNEE RAIL offers different kinds of railway fasteners to meet client's requirements, such as Elastic Rail Clip and Clamp, Rail Screw Spike, Plastic Dowel, High Tensile Track Bolt with Nut, Rail Base(Tie) Plate, Rail Fish Plate, Railway Shoulder(Insert), Fish Bolt, Railroad Rubber and EVA Pad, etc. Samples and drawings provided by customer, we will manufacture qualified products accordingly.
Click here to obtain the detailed product catalog of GNEE RAIL.
