SFZTDU Rockwell Mortise Thumbturn cylinder lock

Mortise thumbturn cylinder in bronze finish with MS-type cam. Supplied with a 1/4″ trim ring.

Use on the inside of the door: the thumbturn locks and unlocks the mortise lock without a key. The 1-5/32″ housing and MS-type cam match Rockwell SC1 mortise keyed cylinders.

• Function: Thumbturn (privacy)
• Diameter: 1-5/32″ (29.4 mm)
• Cam: MS-type, DIM “A” 0.800″ ± 0.005″ (20.3 mm)
• Trim ring: 1/4″ (6.35 mm) thick, included
• Housing: Zinc diecast; aluminum anodized shell cover
• Thumbturn: Zinc diecast
• Finish: Bronze

Fits: Rockwell storefront mortise locks, including the steel and stainless steel hook bolt, the mortise deadbolt and the mortise deadlatch, plus other narrow stile mortise locks that take a 1-5/32″ cylinder with an MS-type cam (Adams Rite® MS1850, MS1950 and 4530 style). Lock faceplates are on the faceplate page.