Mechanical Knob Mortise Lockset Function Institution Lockset Grade 1 8800 Knob Ball Style Satin Chrome Lockset Finish Keyway Type Yale SA Standards A156.115W ANSI A156.13 Series 1000 UL/cUL Listed ADA Compliant No Lockset Fire Rating 3 hr Backset 2-3/4 in Ligature Resistant No Item Mortise Lockset Key Material Nickel Silver Knob Material Wrought Steel/Brass Location Type Institutional Lockset Performance Strength Heavy Duty Number of Keys 2 Pins 6