1. 316 stainless steel material, corrosion resistance, no rust, strong and durable. 2. The surface is treated with high-precision point solution polishing, with high precision, brightness and polishing degree, effective anti-rust and anti-corrosion, and long service life. 3. Use: rope tightening 4. The design of the closed tube body can effectively protect the thread and prevent the thread from being damaged during the use process, which will affect the use effect. 5. Optional specifications: M5 / M6 / M8 / M10
