-. Feature : 450: Flat : Handing: Non Handed / The ANSI size MS1850SN-050 Series MS Deadlock utilizes a laminated stainless steel hookbolt, activated by a pivot mechanism to provide maximum security for wood or hollow metal doors. / Operation: 360° turn of key or thumbturn throws or retracts the counterbalanced bolt. Key can be removed only when bolt is in a positively locked or unlocked position. Lock accepts any standard 1-5/32" diameter mortise cylinder or thumbturn from either or both sides. Cylinder must have MS® dimensioned cam. / Cylinder Backset: 1-1/2" only / Case: Measures 1" x 6" x 2-1/4". Steel with corrosion-resistant plating. Faceplate: Measures 1-1/4" x 8" -. Label : Adams Rite ASSA ABLOY -. Manufacturer : Adams Rite ASSA ABLOY -. ProductGroup : Home Improvement -. ProductTypeName : SECURITY_ELECTRONICS -. Publisher : Adams Rite ASSA ABLOY -. Studio : Adams Rite ASSA ABLOY -. Title : Adams Rite MS1850SN-450 Deadbolt for Wood or Hollow Steel Doors (1-1/2" Backset)