Easy to InstallThese self-tapping threaded inserts have self-tapping capability, no need to pre-drill, can be used directly by the installation tool to screw into a specific hole. Sturdy & Wear ResistanceThese threaded inserts have good connection performance, can increase the strength of the connection, and improve the connection conditions. Good wear resistance, can be used for parts that need to be removed frequently, it is widely used in automotive industry, railway vehicle industry, marine industry, home appliances and many other places. You canMoney, a total of 50 pieces. 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 with Different Compartments for Easy Storage. Maintenance AssistanceA damaged screw hole can be used normally after installing a threaded insert to save money. SafetyIt has the ability of strong vibration resistance which can prevent loosening. Can be used in many different locations. Specification: Material: Stainless Steel Quantity: 50 pcs 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 L12 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 effects, the pictures may not reflect the actual color of the item.