Canvas frame hanger with teeth

My wife wanted to hang a large canvas and didn't have proper equipment so i put together this. These clips are about 60x30 mm, are 1.5 mm thick and have two 2 mm holes with chamfers for screws (I used 1.5 mm x 12 mm screws). You can also secure it to the frame with glue. They are prepared for a large canvas, but I bet it can be scaled down and work just as well, maybe even cropped using a negative part.