APPLICATION: These self-tapping inserts can increase thread strength for new products, which are used throughout the metal and plastic processing industry. SELF-TAPPING CAPABILITY: Due to self-tapping capability, these self-tapping inserts do not need to be tapped in advance SCREW TO HOLES: These self-tapping inserts can be screwed directly into the special holes reserved by the base material with an economical and aesthetically pleasing installation tool. ADVANTAGE: It has a large contact surface with the finished product, strong tensile strength. Strong vibration resistance which can prevent loosening. EASY INSTALLATION: Easy and quick to install, only need one assembly tool. There is no play with the base material and the base material also has good airtightness if there are any bubbles in it.