The insert nut is made of high quality zinc alloy, which has good mechanical properties and wear resistance at room temperature, and can maintain the integrity of the thread after repeated use.< /p> Thread Unique external thread designed specially for tapping, contributes to tapping, with good tensile strength, can effectively prevent stripping due to torsion or vibration. Just need drill an appropriately sized hole and install with a hex wrench. The tapered external thread makes it difficult to remove due to vibration. The lock nut is suitable for soft woods such as pine, plywood, fiberboard, etc. It has a positive effect on the combination of furniture. Thread The external thread makes it easier to insert the hole and saves you effort.Provide a permanent strong thread for wood and sheet materials made of wood.