A kit for assembling and mounting a mosquito net  frame . They are made for what seems to be the most wildly used aluminium extrusions in Europe . They have a section of 24x15mm.

The hinge has a screw version (that I recommend) and a simple version. For the screw version you would need a M3x30mm hex socket screw. You will need to use a drill to clean the hole and then you will be able to screw directly into it, no tapping needed. If it's very difficult to get it in just widen the hole, it will have enough grip anyway.