9423M door closing mechanisms for single door enclosure with openings up to 60 inches. This two point roller latch kit is for enclosures with doors that are hinged on the left hand side. This kit is designed to be used on NEMA Type 4 and 12 sheet steel enclosures. This kit is for enclosures with a door opening of 39 inches or less. This kit is to be used with 9422A1, 9422A3 or 9422A9 operating handles. This kit can be used on doors with a depth of 0.75 inches or less.