Glass Door Lock for 6 mm Glass for Single Swinging Glass Doors in Cabinets are available in both left and right hand configurations. Easy to install after drilling a 3/4 inch (19 millimeter) hole, these attractive cam style locks will bring added security to cabinets with single glass doors up to 1/4 inch (6 millimeter) thick. Locks come complete with two keys, front plate, strike plate, straight cam, washer, hex nut and screws.