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Track bolts and nuts are a kind of mechanical railway parts, consisting of a head and a screw (cylinder with external thread), with a cylindrical threaded nut. Bolts are used to fasten the connection with the two-hole parts. Unscrew the bolt and we can get two separate parts. Therefore, the bolt connection is a detachable connection.
Types of Track Bolts and Nuts:
Track bolts and nuts have different applications due to their different functions. Common types are fishtail bolts, rail anchor bolts (also called rail compression bolts), turnout bolts, clamp bolts, etc.
1. Fishtail Bolt
The fish bolt is usually used to fix the rail joint, and sometimes the fish bolt can be replaced with the hexagon bolt. Fishtail bolts are mainly used for rail laying and ballasting in the metallurgical industry, coking industry, and steel industry. Models include Φ14×70, Φ16×75, Φ18×90, Φ20×90, Φ22×135, Φ24×135, Φ24×145, Φ24×170, etc. Fishtail bolts are formed by hot pressing or cold heading. Fishtail bolts are made of Q235 or 45# steel or some insulating materials.
2. Rail anchor bolts
Rail anchor bolts, also known as rail compression bolts, can be divided into fixed anchor bolts, movable anchor bolts, tie bolts and connecting anchor bolts. According to the shape, there are L-shaped, 9-shaped, U-shaped, welded anchor bolts and embedded bolts for anchor bolts.
Fixed anchor bolts are also called short anchor bolts. Used to fix equipment with less vibration and shock.
Rail anchor bolts are used in equipment fastening, steel structure foundation embedded parts, street lights, traffic signs, water pump or boiler installation, etc.
3. Switch bolt
Material: Q235, 45#, 40Cr, 35CrMoA, Q345B, Q345D, 20MnTiB, tb436-77, TB413-75, TB414-75, TB415-75, TB416-75.
Grade: 8, 8.8, 10.9, 12.9
Application areas: construction, machinery, railways, steel, electric power and other fields.
4. Clip bolt HS26 & HS32
This type of bolt is used to connect rail baseplates and rail clips together with nuts and washers.
There are two types of clamp bolts to choose from: square neck or no neck.
Material: Q235, 35 #, 45#
Grade: 4.6, 5.6, 8.8
Standards: UIC, GB, BS, DIN and GOST or ISO etc.
Surface: plain, black spray paint or according to customer requirements
Suitable for rail type: M20 X 60 30Kg rail, M20 X 75 30Kg rail,
M22 X 66 40Kg rail, M22 X 80 48Kg rail, etc.
5. Track T-bolt
Material: Q235, 45 #
Grade: 4.6, 5.6, 8.8, 10.6, 12.9
Surface: natural color or according to customer requirements
6. Special bolts
Material: Q235, 35#, 45#
Grade: 4.6, 5.6, 8.8
Surface: plain color, black spray paint or according to customer requirements
7. Tunnel bolts
Type: can be provided according to customer drawings and samples.
Surface: plain (oil) black. zin. HDG etc.
Types: round thread method blue bolts, special curve bolts, special pitch spear bolts, etc.