Welcome to our shop! VIBRATION RESISTANT: The thread combination kit is vibration resistant and can prevent loosening. INTERNAL THREAD: Self-tapping thread split inserts, featuring heavy-duty internal threads, resist heat and corrosion when installed. ELASTICITY: Thread Inserts Increase connection strength and fatigue resistance through the elasticity of thread inserts. EASY TO INSTALL: You can easily and quickly install threaded inserts using just one assembly tool. PACKAGE INCLUDED: The package includes 58pcs thread inserts and 58pcs self-tapping thread inserts. Delivery Quantity: 116 PCS/box Product color: Silver, Gold Product size: M3*0.5 10 PCS M4*0.7 10 pcs M5 * 0.8 10 pcs M6 * 1.0 10 pcs M8 * 1.25 10 PCS M10 * 1.5 4 pcs M12*1.75 4 units Note: Manual measurement, please allow 1 - 3cm error!!! 100% satisfaction - Our customers are our priority. If you find any problems with the products after receiving the goods, such as damage and incorrect quantity, please contact us immediately. We do our best to provide you with satisfactory after-sales service.