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The fish tail bolt is a specialized bolt used to connect the fish tail plate and the rail, playing a crucial role in the railway track system. Below is a detailed introduction to the fish tail bolt:
Structural Features
Appearance: It usually consists of a bolt, nut, and washer. The bolt is a slender cylindrical shape, with one end threaded and the other end typically having a hexagonal or square head, making it easy to tighten with a wrench. The nut matches the thread of the bolt and is used to secure the fish tail plate to the rail. The washer is generally a flat washer placed between the nut and the fish tail plate, serving to distribute pressure, prevent the nut from loosening, and protect the surface of the fish tail plate.
Size Specifications: Its specifications vary, mainly depending on the model of the rail and fish tail plate being connected. Common sizes include diameters of 20mm, 22mm, 24mm, etc., with lengths generally ranging from 100mm to 300mm, such as M24×160, M22×140, etc., where M indicates standard thread, and the numbers represent the thread diameter and bolt length, respectively.
Function
Tightening Connection: The main function of the fish tail bolt is to securely fasten the fish tail plate at the joint of the rail, ensuring a firm and reliable connection between the fish tail plate and the rail, allowing two rails to be stably connected together to form a continuous railway track, ensuring the safe operation of trains.
Load Bearing Transfer: When a train runs on the track, the immense pressure, impact force, and lateral force generated by the wheels are transmitted through the rail to the fish tail plate, and then from the fish tail plate to the fish tail bolt. The fish tail bolt needs to bear these loads and transfer and distribute them within the connection structure formed by the rail and fish tail plate, ensuring that the load is evenly distributed across the entire connection point, preventing excessive local stress that could lead to connection failure.
fish tail bolt
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E-mail：yanzheng@hbsj-fasteners.com
Add: South of Liu Han Village, Liu Han Township, Yongnian District, Handan City, Hebei Province
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