Item Type: Threaded Insert Material: Stainless steel Color: Silver Application: Used for thread repair and protection Package List 5 x M5 x 0.8-M8 x 1.25-L8mm Threaded Insert 5 x M5 x 0.8-M8 x 1.25-L10mm Threaded Insert 5 x M5 x 0.8-M8 x 1.25-L12mm Threaded Insert 5 x M5 x 0.8-M10 x 1.5-L10mm Threaded Insert 5 x M5 x 0.8-M10 x 1.5-L15mm Threaded Insert 5 x M4 x 0.7-M6 x 1-L6mm Threaded Insert 5 x M4 x 0.7-M6 x 1-L8mm Threaded Insert 5 x M4 x 0.7-M6 x 1-L10mm Threaded Insert 5 x M4 x 0.7-M8 x 1.25-L6mm Threaded Insert 5 x M4 x 0.7-M10 x 1.5-L8mm Threaded Insert 5 x M3 x 0.5-M5 x 0.8-L4mm Threaded Insert 5 x M3 x 0.5-M5 x 0.8-L6mm Threaded Insert 5 x M3 x 0.5-M5 x 0.8-L8mm Threaded Insert 5 x M3 x 0.5-M6 x 1-L6mm Threaded Insert 5 x M3 x 0.5-M6 x 1-L8mm Threaded Insert 1 x Storage Box 1High Hardness: The hardness of the metal thread insert is high, it will not be deformed after long term use, and it is safe and non toxic. 2Stainless Steel Material: The threaded insert is made of stainless steel and has the functions of wear resistance, rust resistance, corrosion resistance. 3Fix Firmly: The screw is firmly fixed, not easy to be slippery, the thread is deep, and the force is uniform, so you can use it with confidence. 4Burr Free: The stainless steel thread insert thread is exquisite in workmanship, burr free, clean and tidy, and easy to install and remove. 5Main Application: Stainless steel thread inserts are mainly used for thread repair protection and can be used in the lighting industry.