Steel or Aluminum Frame Entry Door Mortise Deadbolt Lock Set- Huge five-ply laminated steel bolt with concealed hardened steel pin provides maximum security. Designed for aluminum or steel framed storefront entry doors. Specifications: Backset: 31/32", 1-1/8" . Face Plate: Width - 1", Length - 6-7/8"Case Dimensions: Width - 7/8", Length - 6", Depth (specific to backset) - 1.63" through 1.78"Deadbolt: Width - 5/8", Throw - 1-3/8"Mortise Deadbolt Dimensions. Includes cylinder set screws, trim, and mounting screws. NOTE: IF YOUR LOCK CYLINDER IS NOT THREADING IN, TRY LOOSENING THE LOCK BODY MOUNTING SCREWS.