Our Swing Leg Hinge allows a leg, hidden inside of a cabinet, to swing open when the table flap is dropped to a horizontal position. When the flap is raised, the leg swings inside. The hinge accommodates a 1" square "U" leg of wood or steel and a 3/4" thick table flap. It has 6 countersunk holes for #6 flat head screws. The hinge is constructed of .06 cold rolled steel with a silver powder coated finish.