This is a model that I designed for my work setup, a 2 piece clamp for a webcam to mount to. I used it to mount a webcam to a monitor stand, but this could really be used/adapted to work with most anything. I used 4 M2x16 bolts with nuts for the clamp and a spare bolt that fit the webcam for the mount. Seems like for the most part, a standard webcam/camera uses a ¼ x 20 inch screw, so the middle of the clamp plates have a 1/4 inch hole in the center.