Specifications: M5*10mm, Thread Diameter: 5mm, Thread Length: 10mm, Ring Inner Diameter: 13.5mm, Ring Outer Diameter: 23mmStandard Size Premium Quality: The products are made of high quality 304 stainless steel, which has good corrosion resistance in all environments, superior rust resistance and excellent oxidation resistance. Easy Installation - These ring screws are easy to install and provide you with large lifting or hanging capacity, ideal lifting equipment. Application: Widely used in ports, electric power, shipbuilding, petrochemical, mining, railways, automobile manufacturing, large-scale transportation, marine salvage, airport construction, bridges and other important industries, as well as mechanical equipment for infrastructure projects. 100% SERVICE AFTER-SALES: If you are not satisfied with our products due to any problems, please contact us by email, we will do our best to solve them, you will get compensation or full refund.