SFDB013132 Rockwell Steel Deadbolt Mortise Lock – 31/32″ Backset

The Rockwell SFDB013132 is a steel mortise deadbolt (deadlocking bolt mortise lock) for narrow stile aluminum and glass storefront doors. The laminated steel bolt is thrown and retracted by a key cylinder outside and a key or thumbturn cylinder inside, and deadlocks when fully thrown.

It is a direct replacement for the Adams Rite® MS1850 deadbolt with a 31/32″ backset. Add a standard 1-5/32″ mortise cylinder with an MS-type cam, and choose a faceplate to match your stile.

• Type: Deadlocking bolt mortise lock (mortise deadbolt)
• Case: Steel
• Bolt: Laminated steel, 5/8″ × 1-3/8″
• Throw: 1.41″ (35.8 mm)
• Backset: 31/32″ (24.6 mm)
• Cylinder: 1-5/32″ (29 mm) threaded mortise cylinder with MS-type cam, sold separately
• Faceplate: Ordered separately: flat (FP1), L.H. bevel (FP2), R.H. bevel (FP3), radius (FP4) or radius with weatherstrip (FP5)
• Cross-reference: Adams Rite® MS1850 deadbolt, 31/32″ backset

Complete the lock: a deadbolt faceplate and an SC1 mortise cylinder in aluminum or bronze, keyed-alike pairs for inside and outside, or a thumbturn cylinder for the inside.

Which backset do I need? Measure from the edge of the door to the center of the cylinder hole. This deadbolt is 31/32″. It is also available in 1-1/8″. For sliding doors, see the hook bolt version.

Adams Rite® is a registered trademark of ASSA ABLOY®. Rockwell Security is not affiliated with or endorsed by Adams Rite®; model numbers are for cross-reference only.