Mechanical - Lever - Mortise - Lockset Function Classroom - Lockset Grade 1 - Style L 06A - Lockset Finish Satin Chrome - Keyway Type Everest C123 - Key Type Different - Standards ANSI A156.13 - ADA Compliant No - Lockset Fire Rating 3 hour Backset 2-3/4" Ligature Resistant No - Includes Hardware - Item Mortise Lockset - Key Material Nickel Silver - Location Type Commercial - Number of Keys 2 - Required Door Thickness 1-3/4" Series L - Strike Type Square Corner.