1、The wire thread insert set is fitted in the screw hole of the metal workpiece to form a high‑strength and high‑accuracy standard female thread. 2、The wire thread insert can be used to switch between metric and inch threaded holes, which is convenient and quick. 3、This socket is a cost‑effective repair tool when threading errors or repairing damaged female thread holes. 4、The thread repair socket is made of stainless steel, which has high strength and is not easily deformed during the thread repair process. 5、Maintenance nuts are mainly used in aviation, automobiles, lamps, molds, mechanical equipment and other manufacturing fields. 5 x Wire Thread Insert Item Type: Wire Thread InsertMaterial: SUS304Model: M22 x 2.5 x 1DPurpose: For threaded connectionThread: M22 x 2.5Outside Diameter Before Installation: Approx. 26.2- 26.8mm / 1- 1.1inLength After Installation: Approx. 22mm / 0.87inNumber of Turns Before Installation: Approx. 6.9Drill Bit Diameter: Approx. 22.6mm / 0.89inThread Protective Socket Model Specification Description: For Example: M3 x 0.5 x 1.5D means that after the screw set is completed, the female thread is M3, the pitch is 0.5, and the length is 1.5D (length refers to 1.5 times the diameter, that is, 1.5 x 3= 4.5mm) , the length here refers to the length after installation.Wire thread inserts are also called threaded sheaths, stainless steel threaded sockets, wire sockets, and braces. They are a new type of female threaded fasteners made of high-strength, high-accuracy diamond-shaped cross-section steel wires; Application to low-strength engineering materials such as aluminum alloy, zinc alloy, copper, plastic, etc., can significantly improve thread strength and wear resistance.