I am not really sure how I managed to do this, but I lost my hinge mounts for a 14U HP Server Rack. So before I attempt to fabricate something out of metal, I thought it would be worth a shot in ABS. So far it seems to be sturdy enough. I am sure it would not be considered secure any longer, but that is not a worry of mine.

If I can't find them (moved in a hurry), I may end of casting them in aluminum using a replacing method.