These Four-Way 90 Degree Display Connectors are the most popular method of connecting 3/16 inch (5 millimeter) tempered glass for modular display systems. Four-Way 90 Degree Connectors used for connecting multiple panels in larger display cubes. useny combination of our diecast zinc alloy connectors with tempered glass or plastic to create beautiful fixture cube merchandisers. usehe total combination of hinges, hasps, 120 degree and adjustable connectors. Design possibilities are unlimited since cubes or hexagonals can be combined to create a variety of attractive displays.