Part Number: RRS5
These are typically used in high end "top of the Line" transport trailers, Motorcycle trailers, and trucks. They can be mounted on a wood or steel floor, the back of the truck, roll off flatbed, boat dock, etc.
They are STAINLESS STEEL for rust free service indoors or outdoors, and can be bolted or welded into place. Price is for one D ring, but I have LOTS of these, just bid for the number you want. If you need a large qty, just let me know, I will list more.
Get as many as you want, they make a great gift!