1、The wire screw insert set is fitted in the screw hole of the metal material workpiece to form a high‑precision female thread. 2、The repaired thread screw is a fastener with certain elasticity, which can enhance the connection strength and fatigue strength of the thread. 3、When a thread processing error occurs or a damaged female thread hole is repaired, the wire thread insert can repair the thread hole economically and effectively. 4、These wire thread inserts can be used to switch between metric and inch threaded holes, which is convenient and fast. 5、Used in low-strength engineering materials such as aluminum alloy, zinc alloy, copper, plastic, etc., it can significantly improve thread strength and wear resistance.