Made this bracket for joining rectangular wire meshes. It's a cheaper alternative to pegboards for some use cases.

The slim face (cover) with the countersink goes on top, a screw goes through both base and cover and fastens the metal wire to the wall or any other desired surface.

If you need hangers for the mesh, you can take a look at this

https://www.myminifactory.com/object/3d-print-mesh-hanger-for-35mm-wire-meshes-186116