Surface mounted Heavy Duty Weld-On Tie-Down Ring for trucks and trailers. Unfinished steel 5/8" D-Ring measures 4-1/4 inches O.D., 3 inches x 3 inches I.D. Rated 6,000 pounds working load limit, 19,000 pounds maximum breaking strength. Wallace Forge part number 2328220.
Per federal D.O.T. requirements, working load limit is 1/3 of the rated capacity