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CK4800.4
45681 12/22
Outside Inside
Series/ Function Type ANSI No. Function Description
CK4810 Passage or Closet F75
Latchbolt by knob either side. Both knobs always free.
CK4820 Privacy, Bedroom or Bathroom F76A
Latchbolt by knob either side. Outside knob locked by push button. Outside knob unlocked by turning slotted button outside, by rotating inside knob, or by closing door. Inside knob always free.
CK4851 Entrance or Office F109
Deadlocking latchbolt by knob either side, except when turn button locks outside knob. Pushing turn button in locks outside knob, requiring use of key outside to unlock. Turning inside knob unlocks outside knob. Pushing in and turning button locks outside knob, requiring key at all times. Turning inside knob does not unlock outside knob until button is manually turned to unlocked position. Inside knob always free.
CK4855 Classroom F84
Deadlocking latchbolt by knob either side except when key outside locks outside knob. Outside knob unlocked by key outside. Inside knob always free.
CK4857 Storeroom or Closet F86
Deadlocking latchbolt by key in outside knob, or by rotating inside knob. Outside knob always rigid. Inside knob always free.
CK4850 Half Dummy Trim -
Knob acts as pull only; no operation. Knob is rigid.
Functions
CK4800 Series
Indicates rigid knob.
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