The OEM Master Lock Heavy-duty Storeroom Lever MLKSLCHSR26D is designed for secure locked storage rooms. It can be operated by a lever from the inside or a key from the outside. This lock features a BumpStop advanced cylinder that resists bump attacks, ensuring enhanced security. It includes an ASA strike, a 3-1/4" diameter trim, a 2-3/4" backset with a UL latch, and a 6-pin Schlage C compatible cylinder. The cylindrical construction is finished in chrome for durability and style.