Railway fish bolt type
type
Classification by material
Common material fishtail bolts: made of conventional metal materials, suitable for the connection of general railway tracks.
High strength fishtail bolts: Made of materials such as high strength alloy steel, with higher tensile strength and hardness, suitable for railway tracks requiring higher strength connections.
Process classification of thread making
Spade threaded fishtail bolt: The threaded fishtail bolt is processed by the spade process, which is suitable for general connection needs.
Roller threaded fishtail bolt: The threaded fishtail bolt is processed by the roller pressing process, which has higher thread accuracy and strength, and is suitable for the occasions with higher requirements for threaded connection.
Classification by shape and size
Cylindrical fishtail bolt: The bolt rod part is cylindrical, suitable for standard rail connections.
Special-shaped fishtail bolts: Special-shaped fishtail bolts tailored to specific needs, such as fishtail bolts with special head shapes or rod sizes, for special rail connections.
