Used with various low strength materials, which can improve the wear resistance of bearing points and prevent damage to the thread.Elastic material: due to a certain elasticity, the inserts can better distribute the load of the thread, prevent the screw and the screw hole from deviating between the type of screw pitch and the type of tooth - Absorbs vibration , which reinforces the thread.Better than normal locking device: The locking cable locking sleeve can lock the screw in the threaded hole, so that the screw is not loose when subjected to shock vibration, which is better than a device normal lock.Can be used repeatedly: The hardness of the wire insert is higher than that of the screw, so that it does not wear out when in contact with the screw and can be used repeatedly.Excellent connection performance: strengthen the connection strength and improve the connection state, avoid wire slippage, bad tooth phenomenon, and achieve excellent connection performance.