Mechanical Lever Mortise Lockset Function Privacy Lockset Grade 1 Style 5SS55 Rose Lockset Finish Satin Stainless Steel Keyway Type Marks C Key Type Not Keyed Standards ANSI F22 UL Listed ADA Compliant Yes Backset 2 3/4 in Ligature Resistant Yes Item Antiligature Mortise Lockset Location Type Behavioral Health Detention Facility Number of Keys 0 Required Door Thickness 1-3/4 in Series 5SS55 Strike Type Curved Lip Strike