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.
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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.
Before buying railroad spikes, the first thing should be considered is the type and size, there are two common types on the market: the screw spike and the dog spike.
The screw spike refers to a large metal screw that is usually used to fasten rails, and also used to screw a tie plate. Based on the different use, standard of rail track, and specific geographic requirements like length, diameters, drive heads, etc. railroad screw spike can generally be divided into 4 types, including Ss series sleeper screw, square head screw spike, hexagon screw spike and double-head screw spike.
Ss series sleeper screw is a typical kind of rail spikes, the common sizes include Ss 1/130 , Ss 1/150 , Ss 2/180, Ss 5/150 , Ss 6/150, Ss 7/180 , Ss 8/140 , Ss 8/150, etc.
If you want to learn more, please visit our website Rail Fish Bolt.
Square head screw spikes get their name from its square head, and common sizes include M22*145, M22*155, M22*165, M22*185, M22*195, etc.
As the name implies, the Hexagon screw spike has a hexagon head, and common sizes include M22*145, M22*155, M22*165, M22*185, M22*195, and so on.
Double-head screw spike is usually used with Nabla clip fastening system, and it is widely used in Africa, and common size is 23×174.
As a primary type of railway spikes, the dog spike has an L-shape head and a square shank, which is used to fasten railroad track to wooden ties. The dog spike is so called because its two lugs on the rail head that looks like a dog’s head. The underside of spike is sloped to fit the surface of the rail base. The dog spike is applied in North America, and common spikes are 5/8”*6” and the 9/16”*5-1/2”.
It is necessary for you to learn the materials and standards before buying railroad spikes.
As we all know, quality control is a vital factor in purchasing product, it is important to focus on strict quality control and qualification certificate in terms of railroad spike. As for strict quality control, it is specific in the quality control link of whole process of production. And the common certificates include CRCC, ISO and so on.
Besides that, a wide range of the service around rail spikes was provided by the manufacturer, which will be a related consideration, such as after-sale service, shipment service, sampling service, etc. for example, there are various kinds of railroad spike packing methods, including:
In addition to these factors mentioned above, the price of rail road spike is one of the most important factors, buying railroad spikes, in a sense, it is a process of finding a best railroad spike price, comparing price on railroad spike from different manufacturers, calculating the cost, and finding cost-effective railroad spikes.
In conclusion, as a qualified buyer, all you need to do is take all these factors into account, and make a right purchase decision on buying railroad spike online.
For more information, please visit I-Beam Steel for Sale.