Not only does this Anchoring D Ring Mount Flush, but it also swivels 360 Degrees for ultimate flexibility when tying down equipment. Use at awkward and difficult angles, and with its zinc plated construction protecting against rust, use in the harshest environments. Maximum breaking strength of 5,000 pounds and a safe working load of 1,666 pounds. This Anchoring mount is 6 1/4 inches Round and easy to install.