Feature: 1. A new type of female threaded fasteners. Wire thread inserts are also called threaded sheaths, stainless steel threaded sleeves, wire sleeves 2. Made of high‑strength, high‑accuracy diamond‑shaped cross‑section steel wire 3. Application on low‑strength engineering materials such as aluminum alloy, zinc alloy, alloy, copper, plastic, engineering plastics, etc., will significantly improve thread strength and wear resistance 4. When there is a thread processing error or a damaged female threaded hole is repaired, the wire thread insert is used as a repairing method, can economically and effectively repair the threaded hole 5. Convenient and fast to use wire thread inserts to convert between metric and inch threaded holes Specification: Item Type: Thread Inserts Material: SUS304 Model: M20x2.5x2.5D Thread Specification: M20x2.5 (mm) Length After Installation: Approx. 50mm / 2in Number of Turns Before Installation: 17.5 Outside Diameter Before Installation: Approx. 23.6 ~ 24.2mm / 0.9 ~ 1in Diameter of Drilling Drill Bit for Installation: Approx. 20.6mm / 0.8in Thread Protective Sleeve Model Specification Description: For Example: M3x0.5X1.5D, which means that after the screw set is completed, the internal thread is M3, the pitch is 0.5, and the length is 1.5D (length refers to 1.5 times the diameter, that is, 1.5x3=4.5mm ), the length here refers to the length after installation.. Package List: 5 x Thread Inserts