9423M door closing mechanisms for single door enclosure with openings up to 60 inches. This three point roller latch kit is used for three point locking. This kit is designed to be used on NEMA Type 4 and 12 sheet steel enclosures. This kit is used when 3 point locking is desired or where the door opening is more than 39 inches. This kit is to be used with door closing mechanism 9423M4, 9423M9, 9423M4L or 9423M24L that are for two point roller latching. This kit can be used on doors with a depth of 0.75 inches or less.