BIBO 2 Touch Magnetic Hinge

This is my attempt for a hinge for the front door. It has magnets mounted in the hinge to keep the door fully open.
The magnets are 8mm x 2mm neodymium off ebay. The bolts are 20mm M4 allen bolts and m4 lock nuts. There is also a 32mm M4 bolt for the hinge.

Update
I've added some smaller back plates just in case the original ones catch the top