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Railway Fish Bolt
product overview Railway fish bolt (also known as a rail joint bolt) is a specialized fastener used in railway tracks to secure fishplates (also called joint bars) to the ends of rails. Fish bolts are critical for maintaining the alignment, strength, and integrity of rail joints, ensuring smooth...
Features
Railway fish bolt (also known as a rail joint bolt) is a specialized fastener used in railway tracks to secure fishplates (also called joint bars) to the ends of rails. Fish bolts are critical for maintaining the alignment, strength, and integrity of rail joints, ensuring smooth and safe train operations. They are designed to withstand high tensile and shear forces, making them essential components in railway infrastructure.
Applications of Fish Bolts
Rail Joints
Used to connect two sections of rail using fishplates.
01
Mainline Railways
Suitable for tracks carrying passenger and freight trains.
02
Urban Transit Systems
Used in metro, light rail, and tram systems.
03
Heavy-Haul Railways
Ideal for tracks carrying heavy freight trains, such as coal, iron ore, and other minerals.
04
High-Speed Rail
Ensures stability and safety in high-speed passenger networks.
05
Align the rail ends and position the fishplate over the joint.
Insert the fish bolt through the holes in the fishplate and rail.
Secure with a nut and tighten to the specified torque using a torque wrench.
Check the alignment and tightness of the bolts to ensure a secure connection.
1
Visual checks for loosening, wear, or damage.
2
Ensure bolts are tightened to the correct torque during maintenance.
3
Replace bolts if they show signs of fatigue, corrosion, or damage.
4
Use ultrasonic testing or magnetic particle inspection to detect internal defects.
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