The railway fishplate (Rail Joint Bar) is an essential fastening component used to connect two sections of rail. Characterized by its elongated shape with slightly flared ends resembling a fish's tail - hence its name - the fishplate achieves secure rail connection by tightly fitting against the rail web and being clamped firmly with fish bolts. This configuration ensures rail continuity and proper alignment, maintaining track structural integrity and safe operation. Fishplates not only withstand shear forces and longitudinal tension from passing trains but also effectively distribute stress at joints, preventing rail fractures and joint gap movement.
The fish bolt (Rail Joint Bolt), serving as a complementary fastener to fishplates, primarily functions to secure fishplates on both sides of the rail, ensuring tight joint connection. Typically manufactured from high-strength alloy steel, fish bolts are used in conjunction with spring washers and flat washers to prevent loosening caused by vibration and temperature variations. The quantity and specifications of fish bolts vary depending on rail type and track class, with common configurations utilizing 4 to 6 bolts per fishplate.
GNEE RAIL specializes in manufacturing fishplates and fish bolts in various standard and customized specifications, ensuring compliance with international standards such as UIC and AREMA to meet diverse track engineering requirements. Additionally, GNEE RAIL supplies a comprehensive range of railway fasteners including rail clips (multiple types such as SKL, Nabla, E Clip, Fast Clip, and KPO), screw spikes, dog spikes, gauge rods, rail pads, and insulated gauge blocks, providing complete solutions for track construction and maintenance. For more detailed product information, please contact GNEE for our comprehensive product catalog.
