D-Ring, Surface-Mount Tie Down, 1200 lbs.
Flush mount, two pieces. The black plastic collar supports the metal portion so that the ring is indented. Good for fastening butt or breast bars (wall mount) because when the chain is unsnapped, the horse can slide by it without injury. The two vertical bolt centers are 15/16" apart. Plastic collar is 4" in diameter. 1,200 breaking strength.
Not recommended for tying horses, but we've seen it on the outside of trailers (perhaps for hanging feed bags?) and there is a slot in the plastic collar for a water drain.
Used in utility trailers as a floor-mount tie down or in trailers used for both off road vehicle use & horse hauling. Horses can stand on this when it is installed on the floor, with no injury to themselves.