Schlage Lock ND Series




31 mechanical functions

6 wired functions with:

− Autodetecting 12-24V DC input − Switch-selectable EL/EU operation − Modular request to exit (RX) − 0.230A max/0.010A holding current

ND Series

Grade 1 cylindrical lock

Grade 1 is just the beginning

Schlage ® is pleased to introduce the redesigned ND Series Grade 1 cylindrical lock. Already exceeding BHMA Grade 1 standards, the redesigned ND uses new springcages, levers and latches to take strength, performance and reliability to an all-new level.

Improved strength and security

No access with minimum 3,100 in-lbs of lever torque (2.6x BHMA, for general abuse)1

No access with minimum 1,600 lbs of offset lever pull (8x BHMA, for pry-bar attacks)1

No access with minimum 100 vertical impacts (20x BHMA, for sledgehammer attacks)1,2

Available in 10 finishes, 5 lever designs, and 2 rose designs

Multiple key systems available open, patented, restricted, geographic exclusive, UL437

Improved performance

Near-zero droop and wobble beyond 16 million cycles (after 16x BHMA) – without the use of set screws or O-rings1

Latch retraction with up to 200 pound preload (4x BHMA) for confident operation in warped and preloaded doors

Improved reliability

Cast steel spindle construction exceeding 16 million cycles

Withstood aggressive Schlage development testing including lever-snap and abusive cycling

Beyond grade 1 performance for ND locks with Schlage cylinders only (standard, FSIC & SFIC). Performance with non-Schlage cylinders will exceed BHMA Grade 1 requirements but may be less than the performance of products with Schlage cylinders.


Vertical impact testing stopped after 100 blows with no failure or indication of stress.


Support for 10 non-Schlage cylinders including Best, Corbin Russwin, Medeco, Sargent and Yale


Exceeds BHMA A156.2 requirements for grade 1 cylindrical locks

Exceeds BHMA A156.25 requirements for indoor electrified locks

UL10C listed for 3-hour fire doors up to 4’0″ x 10’0″

Meets Florida Building Code (ASTM E330, E1886, E1996) and Miami Dade (TAS 201, 202, 203) requirements for hurricanes