ND locks thick door

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As of February 2016, ND locks began shipping with a new latchbolt. The new latchbolt offers substantially improved performance in adverse door conditions (ex, with heavy door loading) andis more ro...
Prior to February 2016, using ND-Series locks on hollow metal doors required the use of latch spacers which prevent the latch from "fishtailing" (back end of latch moving from side to side). Latch ...
The keycam may have failed, example here, the latest design keycam can be easily identified as the colored changed to black. Replace either the keycam or chassis as needed to r...
 This could also happen if the tailpiece isn't installed in a KIL, FSIC, or SFIC cylinder.  The FSIC driver also could have come loose from the core in the spindle.
Schlage ND-Series tailpieces for extended doors are available by only two means, but are not available to order separately. If an extended tailpiece is needed, then a complete lock will need to ...
Only the chassis components are modified for thicker door applications, the lever and spindle assemblies remain intact.  The following parts may be modified depending on the function of the lock ...
The AL and ND locks are not available in any stainless steel finishes.  The only option is either the 626 satin chrome or 625 bright chrome.
The standard out-of-the-box ND lock will fit the following door ranges: All functions except ND85 will fit onto a door 1 5/8" through 2 1/8" extended equally. The ND85 will fit on doors fro...
ND locks can be extended up to 6" Extended Outside.  
The 8190 can be order as a standard for 2 1/4" door thickness. Specify the door thickness to get proper mounting hardware.
The 09-611 indicator stands off the door 0.39".
The pricebook suggests (for a 1-3/4" door) using a 1-3/8" cylinder when installing with an 09-611 occupancy indicator.