Reddit mentions of Hard-to-Find Fastener 014973203856 Phillips Truss Head Machine Screws, 1/4-20 x 1/2, Piece-10

You can get vinyl wrap from a number of locations online, often used for automotive panels. I had leftovers from a furniture project that used a black wood grain vinyl wrap for drawer fronts. Amazon link below. I just used that because it was handy. It worked great, but if I did it again, I might search for a faux carbon fiber print, which looks really cool for ... anything.

I just cut a 1/2" plywood sheet to 24" x 24". Drilled and countersunk the mounting holes for the wall studs, and drilled holes for 1/4-20 threaded inserts for the VESA mounting plate. Big wood screws probably would have worked too, but the threaded inserts seemed like a good idea. Then I sanded the panel, vacuumed it thoroughly to get the dust off, then applied the vinyl wrap, which is just a big sticker. You never want to completely remove the peel away backing from the vinyl sheet before applying it. It is too sticky and easily ruined if it sticks to itself or you try to peel it off of another surface. Peel the backing sheet about 4", stick it to one end of the panel surface, then slowly and carefully rub the sheet flat across the panel while pulling the backing sheet away progressively. You only get one chance to apply it correctly. Trying to pull it off of the panel will likely tear up the plywood. Then use an Xacto knife to trim any excess, and wrap the ends like a present. Finally, mount it to the wall with long drywall screws, attached the VESA plate, and hang the chassis.

• Vinyl sheet that I used - Anything will work
  
  
• Threaded inserts
  
  
• 1/4-20 x 1/2" Truss Head Screws
  
  
• VESA Mounting Plate
  
  
• Black Cable Mounts - Must be screwed to panel or will eventually pull the vinyl sheet away from the panel from the weight of the cables.
  
  
• Slim USB DVD Drive - Sits on top of the power supply.
  
  I taped the DVD drive to the power supply with this, which is thick, super strong, and yet removable without shreading or leaving any gunk or glue behind. That tape also works fantastically for mounting LED strips, the best that I have tried so far. It's rubbery and doesn't feel super sticky and can be pulled off fairly easily - at first. After about a minute, it bonds really well to any surface, then takes a lot of effort to pull up again. Great stuff !!