The 90° Glass-to-Glass Showcase Hinges are constructed of solid brass and are designed for use with 1/4 inch (6 millimeter) thick glass panels that meet at 90°. The overlapping lip on the side of the hinge prevents any rotation and insures a secure fit. This hinge is perfect for small all-glass showcases requiring a hinged front door. Hinges are through-bolted and require two 5/8 inch (16 millimeter) holes in the glass. Gaskets are included. The maximum recommended door width is 18 inches (457 millimeters). Maximum weight should not exceed 24 pounds (10.9 kilograms). One per pack.