Train track construction and maintenance involve the usage of Fish Bolt Nut. It is made to keep fish bolts, sometimes referred to as joint bolts, which are used to link two rail sections at the fishplate or joint bar, in place. It is built of high-strength steel and has certain measurements and thread requirements to fit the employed fish bolts and rail system. It is threaded onto the fish bolt during installation and then tightly tightened with the use of specialized instruments, such as a wrench or impact wrench. By applying the required clamping force to keep the fishplate securely on the rail, this Fish Bolt Nut ensures a solid and robust connection.