Consider lost tite screws. Used them on my panels, still visible but much more sleek than a standard screw.
https://www.toolstation.com/lost-tite-screw/p35982
Interesting, I don't know why this didn't occur to me. I used similar tongue tire screws on my floors a while back. Oh well. Too late?
@Hovis started
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Consider lost tite screws. Used them on my panels, still visible but much more sleek than a standard screw.
https://www.toolstation.com/lost-tite-screw/p35982