Mechanical Knob Cylindrical Lockset Function Entrance/Office Lockset Grade 3 BAO Ball Style Bright Brass Lockset Finish Keyway Type Master Lock Key Type Different Standards ANSI ADA Compliant No Lockset Fire Rating 3 hr Backset 2-3/8 in or 2-3/4 in Ligature Resistant No Item Knob Lockset Knob Material Steel Location Type Residential Lockset Performance Strength Light Duty Number of Keys 2 Pins 4 Required Door Thickness 1-3/8 in and 1-3/4 in Series BAO