Best solution for adhering internal components to monitor?

[1JMLucas]

How should I keep everything attached to the monitor and prevent slipping?

Sorry if this is an ignorant question but my hdmi board and controller board don’t have a metal housing to adhere to the monitor and although everything plugs in fine I was wondering what would be the best option for keeping everything from slipping once it’s on the wall, should I make a PLA housing? Use Velcro? Zip ties?

Thanks for helping out