Description:Self-tapping inserts do not have to be tapped in advance. They canbe screwed directly into the special holes reserved by the base material withan installation tool, which is economical and beautiful. They can also increasethe thread strength for new products, which are used throughout the entiremetal and plastics processing industry.Features:1. Due to self-tapping ability, the base material does not have to betapped in advance.2. It has a large contact area with the finished product, strong pullresistance.3. Strong resistance to vibration, which can prevent loosening.4. There is no clearance with the base material and the base materialalso has good air tightness if it contains bubbles.5. Easy and quick to install - onlyneed one assembly tool.Specifications:Material: SUS303, SUS316, Carbon SteelQuantity: 50pcsWeight: Approx. 192gPackage Includes:10 x M3*0.5 Thread Insert10 x M4*0.7 Thread Insert10 x M5*0.8 Thread Insert5 x M6*1.0 Thread Insert5 x M8*1.25 Thread Insert5 x M10*1.5 Thread Insert5 x M12*1.75 Thread Insert.