you need:
-a DIN 4762 M3x30 Screw or simmilar
like: https://shorturl.at/o8ndy
-a M3 Heat Insert
like: https://shorturl.at/m7KSH
-and a ¼ zoll Screw for your camera or webcam
like: https://shorturl.at/QJqbT
The author marked this model as their own original creation.