Camera USB cable holder
Ideal for cables with dia 3.5 mm

You need screw 1/4 Male to 1/4 Female
Screws is available on eBay or Aliexpress

I use this: https://ebay.us/fBpuXP

For inserting screw into hole, i recomend lighter
And for better operation (but not needed), drill out first 1mm from screw side and put rubber O ring between screw and holder.