185 Series Deadbolt Mortise Lock Body – Hookbolt-For Aluminum Stile Doors-Five-ply laminated steel bolt with concealed hardened steel pin provides maximum security on single leaf doors-Cycle testing exceeds ANSI Grade 1 standards-Steel case with corrosion-resistant plating-Accepts standard 1 5/32″ (29.36 mm) Zinc or Brass threaded mortise cylinder (Cylinder not Included)-Interchangeable with 451/452 Series Deadlatches Backset: 31/32″ (24.59 mm)Throw: 13/16″ (20.6 mm)Faceplate: Flat faceplateBolt Dimensions: 5/8″W x 1 3/8″L (15.88 mm x 34.9 mm)Handing: No HandingFaceplates: Clear/Dark BronzeDimensions

