Feature:1. M8x1.25x3D thread repair inserts, repair threaded holes economically and effectively.2. Helps to form a highstrength, wearresistant and highaccuracy female thread.3. Convenient and quick to convert metric and inch threaded holes, dependable to use.4. Made of SUS304, it has good corrosion resistance, heat resistance and mechanical properties.5. Can be used for low-strength engineering materials such as aluminum alloy, zinc alloy, copper, plastic, etc.Specification:Item Type: Thread Repair InsertMaterial: SUS304Model: M8x1.25x3DThread Specification: M8 x 1.25mmLength After Installation: Approx. 24mm/0.9inTurns Before Installation: 16.5Outside Diameter Before Installation: Approx. 9.8-10.1mm/0.39-0.4inDiameter of Mounting Drilling Drill Bit: Approx. 8.3mm/0.33inApplication: It is a new type of internally threaded fastener, which is made of high-strength, high-precision diamonds-shaped crossed-section steel wire; it is suitable for low-strength engineering materials such as aluminum alloy, zinc alloy, copper, plastic, and phenolic plastic, etc. which can significantly improve thread strength and wear resistance.Model Specification Description:For example: M3x0.5x1.5D means that after the screw is mounted, 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 is the length after installation..Package List:50 x Thread Repair Inserts