SFHB003132 Rockwell Steel Deadlocking Hook Bolt Mortise Lock – 31/32″ Backset

The Rockwell SFHB003132 is a deadlocking hook bolt mortise lock with a steel case and a 6-ply laminated steel hook. It is made for narrow stile aluminum and glass storefront doors and for sliding doors. When thrown, the hook engages the strike and resists prying and lift-out.

It is a direct replacement for the Adams Rite® MS1950 hookbolt 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 hook bolt mortise lock
• Case: Heavy gauge steel, zinc plated / passivated
• Hook bolt: 6-ply laminated steel, 5/8″ × 1-3/8″, with anti-saw feature
• Throw: 13/16″
• Backset: 31/32″ (24.6 mm)
• “A” dimension (case depth to front): 1.63″
• Cylinder: 1-5/32″ (29 mm) threaded mortise cylinder with MS-type cam, sold separately
• Faceplate: Ordered separately: flat (FP6), L.H. bevel (FP7), R.H. bevel (FP8), radius (FP9) or radius with weatherstrip (FP10)
• Cross-reference: Adams Rite® MS1950 hookbolt, 31/32″ backset

Complete the lock: a hook bolt 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 lock is 31/32″. It is also available in 1-1/8″ and 1-1/2″ steel, and in stainless steel.

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.