al chassis differences

RELATED FAQS

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The old D-Series Lever used a standard lever insert similar to the pre-2002 AL-Series standard lever insert.  The old D Lever insert was smaller than the AL and the two were not comp...
The new AL FSIC driver part number is A700-052.  This driver snaps onto the back of the core similar to the ND, as opposed to it being assembled into the lock chassis with a retaining ring.  Th...
Welded (SUA) frames: Welded frames are designed, manufactured and supplied with either square cut/notched corners or with (saw or die) miters and may or may not have connection tabs and slots. Thes...
Both the DW and K-Series frames are identical with the exception of the base anchoring. Both the DW and K-series frames are supplied with a field adjustable compression anchor in each jamb located ...
A Double Egress frame is a double door frame prepared to receive two single-acting doors swinging in opposite directions (both doors are) the same hand. These openings are installed in cross corrid...
The AL lock is a Grade 2 lock ANSI/BHMA Certified A156.2-2003, Series 4000, Grade 2, UL Listed for 3-hour fire door.
To convert the AL44 to an AL40 you can replace the outside plunger unit in the chassis or order the AL40 chassis.  Replacing the plunger unit is more difficult and time consuming and would not be r...
AL-Series and discontinued D Lever-Series locks use castle nuts to hold the chassis to the spring cages and to keep the chassis positioned in the door. This causes confusion at times when the lock ...
A keycam is a sub component inside a cylindrical chassis (such as AL or ND) that provides the interaction required to lock and unlock the chassis.