Rail Bolt

Rail Bolt Basic Types

AGICO manufactures a wide range of Rail Bolts, also known as track bolts. This includes Clip Bolts, Clamp Bolts, Anchor Bolts, and Hook Bolts, among others. Most of these bolts are produced using hot forging technology. They are designed for various rail fastening systems used in different countries' railway and tunnel constructions. We specialize in producing large diameter bolts with strength grades available in 4.6, 5.6, 8.8, and 10.9. Surface treatments include Black Oxide, Zinc Plating, and Hot Dip Galvanization, depending on specific requirements and drawings.

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Fish Bolt

HS26/HS32 fish bolts for ribbed base plates are available in various dimensions as per UIS864-2. The materials used include Q235, 35#, and 45#, with grades of 4.6, 5.6, and 8.8. The surface options include Plain and Black Painting.

Clamp Bolt and Inserted Bolt for the Russian Market

Clamp and inserted bolts conforming to UIS864-2 use materials such as Q235, 35#, and 45# with grades varying from 4.6 to 8.8. The surface finish includes Plain and Black Painting.

Clip Bolt

Anchor Bolts

Hook Bolt

Track bolts are utilized to secure the ends of rails together at joints. The size requirements for track bolts vary according to the rail section. The appropriate diameter and length can be determined by consulting the respective railway standard. Track bolts can be classified into different types, including Button Head Oval Neck, Diamond Neck, Rail Bolt NF F50-008, Fish Bolt, and several special bolts from Russian standards.

How Rail Bolt Works

Track bolts serve to fasten rail ends at joints. The sizes of these bolts must meet the specific requirements of the rail section. Proper diameter and length are established according to railway standards. Types of track bolts include Button Head Oval Neck, Diamond Neck, Rail Bolt NF F50-008, Fish Bolt, and special bolts meeting Russian standards.

Application Criteria of Track Bolts

According to standard rules and rail specifications, every rail joint must have at least two bolts securing it, tightened to deliver approximately 400 foot-pounds of torque, resulting in a tension force of 25,000 to 30,000 pounds in the bolts.

• Bolts must be of the appropriate size and securely in place.
• Bolts should be installed with AREMA spring washers, with nuts positioned against the spring washers.
• Bolts and nuts must be alternately installed inside and outside of the rail.
• Before re-installing bolts and joint bars, clean the joint area and lubricate the joint bar and bolt threads.
• Safety regulations state that operations are not permitted over rails missing any bolts or containing defective bolts. AGICO Railway manufactures track bolts that meet global railway standards and is a leading supplier in this field.

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Each rail joint should be secured with at least two bolts tightened to generate approximately 400 foot-pounds of torque, creating a tension force of 25,000 to 30,000 pounds.