Application and material of fish bolt
2022-10-27
How to use Fish Bolts Rail connection fasteners-preferred fish Bolts,some customer convenience directly choose hexagonal bolts,although in theory can be used,however,relatively more suitable for fish bolts,nuts or plywood is made up of circular hole and elliptical hole,the tail bolt tail has two convex part just stuck in the position of the elliptical hole,When fastening the fish bolt,it will not turn continuously. The material of the fish bolt Fish bolt material is generally carbon steel Q235 or 45#material,according to the steel strength classification is common 4.8.The surface is usually natural and does not need to be treated.High strength materials such as 8.8 or 10.9 are needed for high speed train tracks.After quenching and tempering,the surface of high strength fishtail bolt is treated with boiling black flange.Hot dip galvanizing is also needed for use in areas with severe corrosion and weathering.
