My new TV doesn't have an analog audio jack for my speakers anymore, so I needed an HDMI ARC Audio Extractor to keep using them. This little mount lets me hang it off the back to keep the table tidy. The hole fits an M6 screw (included) which should be enough for most mounts.

Here's the model: https://www.amazon.ca/gp/product/B088JX61XF/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1