These Glass Hinge Brackets are designed for use on glass partitions or fireplace screens made of 3/8 to 1/2 inch (10 to 12 millimeter) thick glass. The highly polished chrome or brass finish complements most modern decors. Concealed set screws secure the glass. This is a non-load bearing type hinge. The hinge is not designed to support the weight of the glass or mirror. The weight must be supported by the floor, counter or other means.