Also known as a restaurant table hinge. This hinge is used to raise and support a table leaf in the horizontal position without any other hardware except the hinge itself. This hinge is in use in many restaurants, by flipping up a rounded table leaf, a square or rectangular table can be turned into a round table. Hinge can also be used on square or other shaped leaves. Also known as a folding leaf hinge. The leaf will fold back 180 degrees under the table. Heavy duty built-in springs hold up the table leaf Order 2 hinges per table leaf Use caution when handling this hinge as the spring is very strong and can injure fingers. This hinge best fits a #6 screw, but #7 screw will also work with head sitting just proud of countersink. Screws offered below with related products. Screws are sold separately.