Specifications: M8*13mm, Thread diameter: 8mm , Thread length: 13mm, Ring inner diameter: 20mm , Ring outer diameter: 35mmStandard 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 eyebolts are easy to install and provide you with large lifting or hanging capacity, ideal lifting equipments. Application: Widely used in ports, electric power, shipbuilding, petrochemicals, mining, railways, automobile manufacturing, large transportation, marine rescue, airport construction ,bridges and other major industries, as well as mechanical equipment for infrastructure projects.