I liked the work done by Tack with the P1 Touch mount. I wanted to be able to run my USB cable into the chamber to connect to the USB port behind the screen.

The channel will accommodate USB cables with an OD of up to 3.75mm

Here are some links for the screws and inserts if needed: (Links are the same product. One is an affiliate link the other isn't)

M3 Hex Socket Cap - Assorted (affiliate)

M3 Hex Socket Cap - Assorted (non-affiliate)

M3 x 4mm x 5mm Inserts (affiliate)

M3 x 4mm x 5mm Inserts (non-affiliate)