1. Aluminum alloy material, smooth surface, strong and beautiful, abrasion resistance and corrosion resistance, not easy to rust. 2. Machining, finely trimmed without burrs, which can increase friction and make it easier for you to twist the screw. 3. Wide applications, can be connected with projector bracket adapter photography accessories gimbal camera tripod etc. 4. Smooth thread, makes it easy to install and remove. 5. Made of high quality material, durable.