Item Type: Thread Repair Material: SUS304 Model: M12 x 1.75 Thread Specification: M12 x 1.75 Outside Diameter Before Installation: Approx. 14.3-14.8mm / 0.56-0.58in Drill Bit Diameter: Approx. 12.4mm / 0.5in 1D Length After Installation: Approx. 12mm / 0.5in Number of Turns Before Installation: 5.3 1.5D Length After Installation: Approx. 18mm / 0.7in Number of Turns Before Installation: 8.4 2D Length After Installation: Approx. 24mm / 0.9in Number of Turns Before Installation: 11.6 2.5D Length After Installation: Approx. 30mm / 1.2in Number of Turns Before Installation: 14.8 3D Length After Installation: Approx. 36mm / 1.4in Number of Turns Before Installation: 18 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 repair nut is an industrial fastening part, which is mostly used with screws or polts. 2When thread processing error occurs or female threaded hole is damaged, the wire thread insert is a good maintenance tool. 3The thread size is standard, the thread is clear, and it will be more accurate for thread sliding tooth restoration. 4304 stainless steel has good corrosion resistance and is not easy to break when repairing threaded holes. 5The wire thread insert can be used to convert between metric and inch threaded holes, which is convenient and quick.