Item Type: Thread Repair Insert_x000D_Material: SUS304_x000D_Model: M8x1.25x3D_x000D_Thread Specification: M8 x 1.25mm_x000D_Length After Installation: Approx. 24mm/0.9in_x000D_Turns Before Installation: 16.5_x000D_Outside Diameter Before Installation: Approx. 9.8-10.1mm/0.39-0.4in_x000D_Diameter of Mounting Drilling Drill Bit: Approx. 8.3mm/0.33in_x000D__x000D_Application: 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._x000D__x000D_Model Specification Description:_x000D_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. 1M8x1.25x3D thread repair inserts, repair threaded holes economically and effectively. 2Helps to form a high?strength, wear?resistant and high?accuracy female thread. 3Convenient and quick to convert metric and inch threaded holes, dependable to use. 4Made of SUS304, it has good corrosion resistance, heat resistance and mechanical properties. 5Can be used for low-strength engineering materials such as aluminum alloy, zinc alloy, copper, plastic, etc.50 x Thread Repair Inserts