Railway Emergency clamp bolt sliding wire

Wrap some raw material tape or hemp around the bolt to increase the friction between the bolt and the screw hole.
Use tools such as rubber pads, rubber bands, or anti-slip agents (such as WD-40) to increase the friction between the screwdriver and the screw head.

Solve slip problems by retapping or repairing threads with the thread repair tools available on the market.

If the slip wire is more serious and cannot be repaired by the above method, it is recommended to replace a new, high-quality bolt.

For some important parts of the bolt slide wire, the method of reaming and setting can be used, that is, expanding the aperture on the basis of the original screw hole, and setting a new screw sleeve to restore the fastening function of the thread.

When installing bolts, ensure that there are no foreign objects in the screw holes, and operate in accordance with the specified torque and sequence.
Check the fastening of bolts regularly, tighten them in time if they are loose, and check whether the bolts are worn or corroded.