For Inswining Doors Outside: Furnished standard with 5-pin rim cylinder 1109E. Inside: 90turn of the thumbturn locks or unlocks deadbolt. Also available with flat strike, model no. 197F (for outswinging doors). Backset: 2-3/8" (60mm) Material: Zinc Alloy Cylinder: 1109E - Brass 5-pin with anti-pick mushroom drivers Case Finishes: Sprayed Brass only Cylinder Finish: Brass 2 Keys RB8 Door Thickness 1-1/4" to 2-1/4" (32mm-57mm)