D-Ring Plate Anchor, Weld-On or Bolt-On Installation, Material Alloy Steel, Ring Dia. 2-1/4 In., Length 4-1/2 In., Width 2 In., Depth 1/4 In., Weight Capacity 131 to 310 lb., Tensile Strength 5000 lb., Standards ANSI Z359.1-2007, OSHA 1926.502