Our extra heavy T hinges are the strongest hinges we make and are intended for large barn or garage doors. The pin is not removable. The straps are forged from 3/16" thick x 2" wide stock and the butt plates are are 5 1/2" high x 4" wide. They are available in 20" or 30" lengths. Please specify if you wish to mount the hinges full surface or half surface.