I have been asked to come with some ideas for an outdoor collapsible table/bar type 'thing' on an outdoor balcony of a condo. The table's purpose would be to hold food and drinks at a standing height and then fold down when not in use (the balcony is rather narrow). The table is intended to go between two windows and fasten to a wall which has corrugated metal siding on it. I would prefer to avoid cutting into the siding and keep any drilling or screw fastening to a minimum.

What could I use for attaching some sort of hinge to the metal siding? I'm thinking I will only need 3 hinges.