Item Type: Thread Repair Insert Material: SUS304 Model: M8x1.25x3D Thread Specification: M8 x 1.25mm Length After Installation: Approx. 24mm/0.9in Turns Before Installation: 16.5 Outside Diameter Before Installation: Approx. 9.8-10.1mm/0.39-0.4in Diameter of Mounting Drilling Drill Bit: Approx. 8.3mm/0.33in 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. 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.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