Space Age Electronics' CODE GRAPHIC FRAME is made of 16 ga steel with a textured, baked-on enamel finish. A liftaway hinge, CAT 30 keyed door lock, and EMT/rigid 1/2", 3/4", 1", and 1 1/2" knockouts are also standard. Other features include a removable 1/2" raised 18 ga galvanized steel backplate with mounting holes, internal threaded grounding lug screw, and a grounding stud screw on the cover. UL and CSFM listed. Red