Choose 31/32" or 1-1/8" Backset Backset: The distance between the edge of the door and Center of the key cylinder. Huge five-ply laminated steel bolt with concealed hardened steel pin provides maximum security. For Adams Rite , Kawneer , & Others Includes Deadbolt Lock, Faceplate, 1 Thumbturn, 1 Lock Cylinder & 2 Keys Pacific Doorware Brand with Adams Rite Style Cam 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.