This adapter goes in place of the factory supplied stand/feet for the TV. In my case I wanted to mount the soundbar under the TV and the hardware I had wasn't optimal.
Remove the feet and bolt on these adapters. There are M8 mounting holes, threaded, so you can have a very sturdy mounting point for sound bar or anything else. Use the screws that come with the original feet to mount the adapter to the TV.
Note, in photo Silver bracket is this version. Red bracket was earlier version.
The author marked this model as their own original creation.