install double cylinder deadbolt

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Schlage and Falcon double cylinder deadbolts have concealed screws to prevent tampering. The two methods used to conceal the thru-bolts are using screw caps or a faceplate. Use the below instructio...
Putting a standard non-hotel cylinder in a L9485 or L9486 will change the operation of the lock to the L9480, storeroom lock with deadbolt.
The JD YA6 tailpiece is intentionally designed such that the tailpiece cannot be installed at the same time as the cylinder.  Interchangeable cylinders assume that the lever and taipiece is in...
See the JD Yale Lever installation instruction HERE
B600-092 is the inside snap-on faceplate for all non-IC double cylinder B562 and B662/762/862 deadbolts.
ND -series locks manufactured on or after January 30, 2017 use the following spring cages:Outside - N523-218 - For ALL cylinder options except for JD-YA6, JD-YA7 and JD-MEDInside - N523-222 -...
ND-series locks manufactured before January 30, 2017 used the following spring cages:
The S-Series and S200-Series outside keyed spindle was redesigned in September 2008.   For locks manufactured BEFORE September 2008    The S and S200 lever cylinders required cy...
Deadbolt Locks (Deadlocks): a lock with a bolt which requires a deliberate action to extend and which resists end pressure in the unlocking direction when fully extended Medium, high to extra he...