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Polished brass mortise lock thumb turn knob disc with spring loaded cam and 3/16 square hub

Progressive Hardware Co., Inc.

Progressive Hardware Co., Inc. 705-04-11 door lock

SKU CH-MDMP-2NFZS MPN 705-04-11

Mortise lock thumb turn disc with long throw and spring-loaded cam in polished brass

  • FinishPolished Brass
  • Polished brass finish resists tarnish and corrosion
  • Mortise thumb-turn disc enables long-throw deadlock operation
  • Spring-loaded cam ensures smooth positive engagement
  • 3/16" square hub fits standard cylinder locking screw

Mortise thumb-turn disc for long-throw deadlocks

This solid-brass turn knob disc fits mortise lock deadlocks that use a long-throw bolt. It is designed for doors that need a durable interior release mechanism. The component is finished in polished brass and ships new.

Spring-loaded cam on a 16-square hub

The disc has a spring-loaded cam and a non-threaded body that is secured by the cylinder locking screw. Its 16-square hub matches the specified spindle size. Builders needing a threaded or shorter-throw disc will need a different part.

Highlights

  • Polished brass finish resists tarnish and corrosion
  • Mortise thumb-turn disc enables long-throw deadlock operation
  • Spring-loaded cam ensures smooth positive engagement
  • 3/16" square hub fits standard cylinder locking screw

Specifications

BrandProgressive Hardware Co., Inc.
Model705-04-11
FinishPolished Brass

Questions about this item

Does the 3/16" square hub fit standard mortise lock cylinders?

The 3/16" square hub matches the common size used with mortise lock cylinders, allowing the thumb turn disc to engage the lock mechanism directly.

How is the thumb turn disc secured without threads?

The disc is held in place by the cylinder locking screw that passes through the mortise lock body, so no threading on the disc itself is required.

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