How does the 98-2 or 99-2 double cylinder function affect the outside lever trim?

  • Double cylinder (-2 or -2SI) features an inside key cylinder which locks or unlocks the outside trim and an outside key cylinder which retracts the latch bolt only (Night latch function).  This is only available on rim or mortise lock devices.
  • Rim devices require two rim type cylinders. Mortise devices require 1 rim cylinder and 1 mortise cylinder (1 1/4" with a straight cam). (Schlage cam reference L583-475.)
  • Available functions are thumbpiece, knob or lever.

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