Mechanical - Lever - Mortise - Lockset Function Classroom - Lockset Grade 1 - Style L Athens - Lockset Finish Satin Chrome - Key Type Different - Standards UL Listed - ADA Compliant No - Lockset Fire Rating Not Rated - Backset 2-3/4" Ligature Resistant No. For Use With Various Door Types Includes Strike - Item Mortise Lockset - Key Material Brass - Location Type Commercial - Number of Keys 2 - Required Door Thickness 1-3/4" Series L - Strike Dimension 1-1/4" x 4-7/8" Strike Type ANSI.