7181 - 1-1/8" Thumbturn Mortise Cylinder by Ilco
Used to unlock a door from the inside without a key. The Ilco Mortise Cylinder is a broad selection that allows the flexibility to cover numerous applications. Styles include keyed, turn knob and dummy.
Finish: The Ilco 7181 Turn Knob Cylinder comes in Brass (03), Satin Chrome (26D), and Duracolor Brown Aluminum (46) finish.
Cam or Tailpiece: Adams Rite (863A).
Thread size is 1.150 x 32 UNS. Cylinder face diameter 1.360. BHMA/ANSI (A156.5) Grade 1.