Mechanical Knob Cylindrical Lockset Function Passage Lockset Grade 2 F Bell Style Antique Brass Lockset Finish Standards ANSI A156.2 ADA Compliant No Lockset Fire Rating Not Rated Backset 2-3/8 in or 2-3/4 in Ligature Resistant No For Use With Residential/Light Commercial Applications Includes Latch Mounting Hardware Strike Item Residential Knob Lock Required Door Thickness 1-3/8 in and 1-3/4 in Series F Strike Dim. 1-5/8 in x 2-1/4 in Strike Type Round Corner Full Lip Strike