Cable pass through I designed for my printer cabinet. Uses 4 M4 Screw inserts and whatever length you need for screws depends on the thickness of the cabinet wall or material. I used 1/2 inch Foam cut slightly larger than the inner square to make a cleaner seal. Used this for my printer power cable and USB cables. Drilled a 1-1/4" or 32MM hole saw to cut the hole. Also made a plate for the other side incase you are using this on thin material. Can be printed in any filament such as PLA or PETG. I used PLA since my cabinet stays well below 60 degrees C.