lock function description

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MA531 (ANSI F20) Apartment Corridor Door Lock  Latch bolt operated by knob/lever from either side, except when outside knob/lever is made inoperative by buttons in face. Dead bolt operated b...
Schlage offers several Corbin Russwin competitor cams.  The left most column  in the image below describes what Corbin function the cam is used on and the additional columns show Modular,...
Changes to the Falcon W501 latch offering were made on 2/13/2012.   Prior to 2/13/2012: The W501 entry lock was supplied with a restoring latch which causes the button to pop and unlock...
Schlage offers a comparable cam to the Yale 2160 and it will operate any Yale lock that utilizes the Yale 2160 cam.     Schlage Cams for Yale 2160  Part Number  Description  B520-7...
The Schlage L-Series uses a clover leaf cam with the exception of the L9060 outside cylinder which uses a straight cam. The cam part number will depend on the type of mortise cylinder, keyway (for ...
The storeroom lock function is described as follows: Latch bolt operated by key from outside or by operating inside lever. Outside lever is always inoperative. The following are storeroom functi...
Conversion kits are available to convert many popular functions.Conversion kits manufactured on or after January 30, 2017 will have the new enhanced ND spring cage, lever, plunger and buttonCo...
For all available ND Series Conversion Kit part numbers, click here.
A flat head screwdriver can be used or the 35-250 emergency key.
The Von Duprin 7500 mortise lock body ships in the NL mode.  Either the function of 7500 lock body has not been changed to the Classroom function or the NL Drive screw is not all the way down. Step...
  Tips for changing the function: The NL Drive screw will not be visible when lock body is set to Classroom function There is locktite on the screw that makes it seem like its turned down enou...