Mechanical Knob Cylindrical Lockset Function Entrance/Office Lockset Grade 2 5200 Cylindrical Ball Style Bright Brass Lockset Finish Keyway Type Schlage SC1 Key Type Different Standards ANSI ADA Compliant No Lockset Fire Rating 3 hr Backset 2-3/4 in Ligature Resistant No Item Knob Lockset Knob Material Brass Location Type Commercial Lockset Performance Strength Heavy Duty Number of Keys 2 Required Door Thickness 1-3/8 in and 1-3/4 in Series 5200