The Universal Hardware Entry Lever has turn button locking. Turn the inside button to lock the outside lever until it is unlocked with a key or the button is manually unlocked. Designed with a tubular chassis for light commercial and residential uses. It has a 3-hour UL fire rating, meets ANSI Grade 2 standards and is ADA compliant.. Equipped with 3-3/4" solid zinc diecast levers. ANSI Grade 2: Tested to exceed 500,000 cycles. UL Listed: 3 Hour fire rated for added protection and meeting building requirements. ADA Compliant: Meets ADA requirements, ensuring accessibility to all disabled persons. Included 5-Pin SC1 Cylinder, brass plug and 2 keys for added security and piece of mind. Door Type: Wood or Metal doors 1-3/8"-2" thick. Non-Handed: Can be applied to left or right handed doors. Adjustable latch fits 2-3/8" or 2-3/4" backset. Tubular chassis lever helps simplify installation. Full lifetime warranty. <a href="https://www.homedepot.com/c/door_locks_HT_BG_DW" target="_blank">Not sure what type of lock you need? Check out our helpful buying guide here.</a>. Interior/Exterior: Exterior. Interior/Exterior: Interior. Door Handing: Universal. Security/ANSI Grade: ANSI Grade 2 (Better). Door Lock Style: Classic. Commercial/Residential: Residential. Commercial/Residential: Commercial