Features Easy to Install: These self-tapping threaded inserts are self-tapping and require no pre-tapping and can be screwed directly into a specific hole using an installation tool. Stable Material: Made of high-quality stainless steel, with high hardness and low wear. Greatly improve the strength and stability of the threaded connection. It has certain elasticity, uniform load, anti-vibration and not easy to loosen. Robust and Wear Resistant: These threaded inserts have good connection properties, which can enhance the connection strength and improve the connection conditions. It has good wear resistance and can be used for parts that need to be disassembled frequently. It is widely used in the automotive industry, rail car industry, shipbuilding industry, household appliances and many other places. Help Maintenance: After the screw hole is damaged, it can be used normally after installing the threaded blade, saving money. Can also be installed in threaded holes to repair damaged threads. Easy and fast installation with just one assembly tool. Safety: With strong anti-vibration ability, it can prevent loosening. Can be used in many different places. Can also be used repeatedly. long lasting. It enjoys a high reputation in the fields of aviation, automobiles, steam turbines, electronic communications, computers, lamps, molds, mechanical equipment, radiators, semiconductor equipment and other manufacturing fields. Description: The self-tapping thread insert is a kind of fastener that strengthens the thread, which can form a high-strength inner thread hole when embedded in a soft material such as plastic, copper. It can also be used to repair the damaged inner thread. Specification: Material: Stainless Steel Quantity: 50pcs Color: Silver Package Weight: Approx. 192g/6.8oz Package list: 10 x M3*0.5-M5*0.5   L6 10 x M4*0.7-M6.5*0.75   L8 10 x M5*0.8-M8*1.0   L10 5 x M6*1.0-M10*1.5   L14 5 x M8*1.25-M12*1.5   L15 5 x M10*1.5-M14*1.5   L18 5 x M12*1.75-M16*1.5   L22 1 x Storage Case Note:  Due to the difference between monitors and light effect, the pictures may not reflect  the actual color of the item. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List