Mechanical Knob Cylindrical Lockset Function Passage Lockset Grade 2 W Hana Style Satin Chrome Lockset Finish Standards ANSI A156.2 ADA Compliant No Lockset Fire Rating 3 hr Backset 2-3/4 in Ligature Resistant No Includes Hardware Item Knob Lockset Knob Material Brass/Steel Location Type Commercial Lockset Performance Strength Medium Duty Pins 6 Required Door Thickness 1-3/8 in and 1-3/4 in Series W Strike Dim. 4-7/8 in x 1-1/4 in Strike Type ASA Strike