Features 1、Provide strong internal thread which resist heat and corrosion when installed. 2、Large contact area with the finished product, strong pull resistance. 3、Strong resistance to vibration, which can prevent loosening. 4、Increase connection strength and fatigue resistance due to the elasticity of thread inserts. 5、Easy and quick to install - only need one assembly tool. Specification Features: 1. Provide strong internal thread which resist heat and corrosion when installed. 2. Large contact area with the finished product, strong pull resistance. 3. Strong resistance to vibration, which can prevent loosening. 4. Increase connection strength and fatigue resistance due to the elasticity of thread inserts. 5. Easy and quick to install - only need one assembly tool. Specifications: Material: Steel Quantity: 116pcs Weight: Approx. 324g Package Includes: Wire Thread Insert: 10 x M3*0.5*2D 10 x M4*0.7*2D 10 x M5*0.8*2D 10 x M6*1.0*2D 10 x M8*1.25*2D 4 x M10*1.5*2D 4 x M12*1.75*2D Self Tapping Thread Insert: 10 x M3*0.5 10 x M4*0.7 10 x M5*0.8 10 x M6*1.0 10 x M8*1.25 4 x M10*1.5 4 x M12*1.75 Package List