I have a vertical piece of plywood (about 1/3 sheet) bolted onto a wood frame structure. There is storage behind the panel, but to access it I need to remove all of the bolts before removing the panel. Slow!

Anyone have ideas on a faster method that would hold the panel securely in place? Hinges won't work because of clearance issues.

One idea (not a good one) is to use U-bolts attached to the structure, with the loop of the bolt passing through slots in the plywood. Then a wedge could be inserted between the protruding loop and plywood surface to hold everything in place. Simply knock the wedges out to pull the panel down. Aesthetically not the nicest...I'd rather stick with the existing bolts.

I'm hoping there are some specialty hardware products that might do a better job. Any ideas?