Fishtail Bolts

Fishtail bolts, mechanical parts, cylindrical threaded fasteners with nuts.
Bolt: A type of fastener consisting of a head and a screw (cylinder with external thread), which needs to be matched with a nut to fasten and connect two parts with through holes. This type of connection is called bolt connection. If you unscrew the nut from the bolt, you can separate the two parts, so the fishtail bolt connection is a detachable connection.

For rail fishplates, fish tail bolts are divided into hooks with an oval neck and a diamond neck

The material of fish tail bolts are: Q235, 45# steel and insulated fish tail bolts and etc...

According to relevant standards, the performance grades of fishtail bolts are divided into more than 10 grades, such as 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9. Among them, fishtail bolts of grade 8.8 and above are made of low carbon alloy steel or medium carbon. Steel and heat-treated (quenched, tempered), commonly known as high strength fishtail bolts, the rest are commonly known as ordinary fishtail bolts

plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing

Fishtail bolts are mainly used in track laying in the metallurgical industry, coking industry, and steel industry to fasten the rail and rail joints.

The models of fishtail bolts are Φ14×70, Φ16×75, Φ18×90, Φ20×90, Φ22×135, Φ24×135, Φ24×145, Φ24×170, etc. They are generally formed by hot pressing with a friction press, with a long buckle. 50mm, cold forging is also available, and it is mostly used in the connection of rail joint bar.

Kingrail Parts' fishtail bolt production attaches great importance to quality control and management. Our fishtail bolt production is fully controlled in accordance with the ISO9001-2008 quality system

1. We inspect and test the raw materials of fishtail bolts

2. The quality control inspectors of our fishtail bolts take sample sampling and batch testing during the inspection process and provide the raw material material certificate of the fishtail bolts for control.

3. According to the different requirements of fishtail bolts, we make corresponding physical and chemical tests and inspections.

4. For the production of semi-finished fishtail bolts and their outsourcing manufacturers, we often organize quality control coordination meetings and provide technical support and guidance.

The fishtail bolts we produce have also obtained a railway product production license from the Chinese Ministry of Railways. We have a complete set of testing equipment to ensure the quality of all our fishtail bolts and meet customer requirements.

Kingrail Parts established by experienced crew on the rail&track field, is a professional & reliable supplier that provides all kinds of rail & track accessories.

As an international trade subsidiary of Kingrail Parts as founded in 1997. We have more than two decades experience on this field, With advanced technology ,powerful processing capacity and excellent service, our products have been well recognized by our customers from domestic & overseas market.