The fish bolt is a rail fastener that is used with rail joint. There are various types of fish bolt on the railway material market, the customers can select suitable and applicable fish bolt to buy. But for a part of new buyers, they don’t know how to choose fish bolt. As a professional railway fastener manufacturer, AGICO Rail compare common fish bolt and high-strength insulating bolt to help you to know the fish bolt better and choose fish bolt easily.
The material of fish bolt is low carbon alloy steel or medium carbon steel and after heat treatment (quenching, tempering), known as high strength fish bolt. The rest are called common fish bolts. High-strength fish bolts are made of high-strength steel or require large pre-tightening force.
High-strength insulating bolt is used to fasten steel rails. It is a kind of rail fastener such as rail clip, track spike, screw spike, tie plate, rail joint bar, etc. High strength fishtail bolts have several grades such as 8.8, 9.8, 10.9 and 12.9.High strength fish bolts are mostly used for the connection of bridge or steel rail.
High-strength insulating bolt and fish bolt are two common types of rail bolt. They are both used to fix steel rails, and what’s the difference between high-strength insulating bolt and fish bolt?
High strength fish bolts are designed to withstand loads greater than normal bolts of the same specification. The ordinary fish bolts are made of Q235 (A3). In order to distinguish high-strength fish bolts and ordinary fish bolts, and we will compare and analyze the differences between them through multiple aspects.
In conclusion, high-strength fish bolt connection has the advantages of simple construction, good mechanical performance, removable, fatigue resistance, and not loose under the action of dynamic load, in a word, itis a very promising connection method. The high strength fish bolt uses the specially-made wrench to tighten the nut, the bolt produce the huge but the controlled pre-tension, through the nut and the pad, also apply same pre-pressure to the connected piece.
Do you have a full guide of fish bolt? We hope you can know more about high-strength fish bolt and understand the difference between high strength insulation bolts and ordinary fish bolts.