Item Type: Thread Repair Material: SUS304 Model: M12 x 1.25 Thread Specification: M12 x 1.25 Outside Diameter Before Installation: Approx. 14.3-14.8mm / 0.56-0.58in Drill Bit Diameter: Approx. 12.3mm / 0.5in 1D Length After Installation: Approx. 12mm / 0.5in Number of Turns Before Installation: 7.5 1.5D Length After Installation: Approx. 18mm / 0.7in Number of Turns Before Installation: 11.8 2D Length After Installation: Approx. 24mm / 0.9in Number of Turns Before Installation: 16.1 2.5D Length After Installation: Approx. 30mm / 1.2in Number of Turns Before Installation: 20.3 Wire Thread Insert Model Description: For Example: M3 x 0.5 x 1.5D, which 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 is 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 sleeves, wire sleeves, and braces. They are a new type of internal 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. Package List 20 x Thread Repair 1The wire thread insert is made of high-quality 304 stainless steel, which is resistant to high temperature and corrosion. 2The wire thread insert is made of steel wire, the exterior is glossy and there is no protrusion, and the thread expansion is more laborsaving. 3In the event of thread processing errors or repairing damaged female threaded holes, thread sleeves are a good repair tool. 4The repaired thread screw is a fastener with certain elasticity, which can enhance the connection strength and fatigue strength of the thread. 5The repair nut is mainly used in aviation, automobiles, lamps, molds, mechanical equipment and other manufacturing fields.