Item Type: Thread Repair Inserts Material: SUS304 Model: M18 x 2 Thread Specification: M18 x 2mm Outside Diameter Before Installation: Approx. 21.4 ~ 22mm / 0.8 ~ 0.9in Drilling Drill Bit Diameter for Installation: Approx. 18.5mm / 0.7in 1D 1.5D 2.5D Length After Installation: Approx. 18mm / 0.7in 27mm / 1.1in 36mm / 1.4in Thread Protective Sleeve Model Specification Description: For Example: M3 x 0.5X1.5D, 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. Wire thread inserts are also called threaded sheaths, stainless steel threaded sleeves, and wire sleeves. They are a new type of female threaded fasteners made of high-strength, high-accuracy diamond-shaped cross-section steel wire; in aluminum alloy, zinc alloy , copper, plastic, synthetic cardboard and other low-strength engineering materials can significantly improve thread strength and wear resistance. Package List 10 x Thread Repair Inserts 1Assembled in the screw holes of workpieces such as aluminum alloys, can form high-strength, wear-resistant standard female threads. 2As a repair method, threaded holes can be repaired economically and effectively. 3Convenient and quick to use wire thread inserts to convert from metric to inch threaded holes. 4Made of stainless steel materials, strong and durable, has a long service life. 5With small size, easy to carry and store, convenient to use and with good performance.