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The Schlage ND25 is the exit lock with exterior blank plate function of the ND Series, Schlage heavy duty Grade 1 cylindrical lock. There is no lever on the outside at all - just a blank plate. Inside there is a lever and a deadlatch, and the latch is retracted by the inside lever only, which stays free for immediate egress.
It is non-keyed, so with a blank plate outside and no cylinder, there is no way to open the door from outside by any means. That is the function. Use it on stair discharge doors, service exits, and back of house openings where entry is meant to happen somewhere else and you do not even want a lever on the outside face suggesting otherwise.
The ND Series margin over the standard applies to the working side. It resists 3,100 in-lb of abusive lever torque, over 690 lbs at the end of a 4-1/2 inch lever and 2.6 times the BHMA requirement, shows near zero droop and wobble after 16 million cycles (16x BHMA) with no set screws or O-rings, and retracts the latch under 200 lb preload for warped and preloaded doors (4x BHMA).
The inside lever comes in nine designs across nine finishes plus a 626AM antimicrobial coating, with a 10 year mechanical warranty.
Features
- Exit lock with exterior blank plate - no outside lever, blank plate only.
- Lever inside with a deadlatch; latch retracted by the inside lever.
- Inside lever always free for immediate egress.
- Non-keyed - no cylinder, and no way in from outside.
- ANSI/BHMA Grade 1 certified to A156.2-2011, Series 4000.
- Resists 3,100 in-lb of abusive lever torque, 2.6 times the BHMA requirement.
- Withstands 100 vertical impacts, 20 times BHMA.
- Near zero droop and wobble after 16 million cycles, 16 times BHMA, with no set screws or O-rings.
- Latch retraction under 200 lb preload for warped and preloaded doors, 4 times BHMA.
- Cast steel spindle and solid cast levers; modular zinc and steel chassis plated for corrosion protection.
- Nine ADA compliant lever designs and nine finishes, plus optional 626AM antimicrobial coating.
- Non-handed; lead lining available.
- UL Listed 3 hour fire rated and BAA compliant.
Specifications
Function
- Schlage Function
- ND25 exit lock with exterior blank plate
- ANSI Function
- None assigned
- Operation
- Blank plate outside, lever inside, deadlatch. Latch retracted by the inside lever. Inside lever always free for immediate egress
- Keying
- Non-keyed. No cylinder is used, and there is no outside operation of any kind
- Keyed Variants
- ND25 x 70 classroom exit lock (ANSI F113) and ND25 x 80 storeroom exit lock (ANSI F112) add a cylinder in the inside lever
Performance
- Abusive Lever Torque
- 3,100 in-lb, equivalent to over 690 lbs at the end of a 4-1/2 inch lever (2.6x BHMA)
- Offset Lever Pull
- 1,600 lbs (8x BHMA)
- Vertical Impact
- 100 impacts with no failure or indication of stress (20x BHMA)
- Cycle Life
- Near zero droop and wobble after 16 million cycles (16x BHMA)
- Latch Preload
- Latch retraction with 200 lb preload (4x BHMA)
Chassis and Trim
- Chassis Material
- Modular design of zinc and steel components, plated for corrosion protection
- Handing
- Non-handed
- Door Thickness
- Standard 1-5/8 to 2-1/8 inches. Optional 1-3/8 inches to 6 inches in EE, EO, EI, and ED configurations
- Backset
- Standard 2-3/4 inches. Optional 2-3/8, 3-3/4, and 5 inches
- Lever Designs
- Athens (ATH), Boardwalk (BRK), Broadway (BRW), Latitude (LAT), Longitude (LON), Omega (OME), Rhodes (RHO), Sparta (SPA), Tubular (TLR), in pressure cast zinc plated to match the finish. Tactile versions available as 8AT, 8BK, 8BY, 8LT, 8LN, 8RO, 8SP, 8TR
- Roses
- Wrought brass or zinc, plated to match the finish. Rose diameter 3-7/16 inches
- Finishes
- 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 619 satin nickel, 622 matte black, 625 bright chrome, 626 satin chrome, 643e aged bronze. Optional antimicrobial coating on 626, ordered as 626AM
Latch and Strike
- Latch
- Deadlatch on this function. Standard 1/2 inch throw stainless steel; optional 3/4 inch throw anti-friction deadlatch for pairs of doors
- Default Latch Part
- 13-247, 2-3/4 inch backset with 1-1/8 x 2-1/4 inch square corner faceplate
- Strike
- Standard ANSI curved lip, 1-1/4 x 4-7/8 inches with 1-3/16 inch lip length. Optional T strike, ANSI strikes with alternative lip lengths, and dust box options
- Default Strike Part
- 10-025, ANSI, no box, 1-1/4 x 4-7/8 inches
Options
- Lead Lining
- XN12-307, for lead lined door applications
- Backset Extension
- 43-005, 5 inch backset extension
- Screw Option
- TORX
- BAA
- Buy American Act compliant, available on all functions
- Request to Exit
- RX is not offered on the ND25. Schlage lists RX for the ND10, ND12, ND80, ND81, and ND96 functions. If the opening needs an exit signal, the ND12 exit lock is the closest alternative
- Ordering
- Attribute values are given in sequence separated by periods: series and function, lever design, finish, then any attributes that deviate from the defaults. The cylinder type field applies to keyed functions only and is not used on the ND25
Certifications
- ANSI/BHMA
- A156.2-2011, Series 4000 Grade 1 cylindrical locks
- Accessibility
- Complies with ICC A117.1 Accessible and Usable Buildings and Facilities
- Fire
- UL 10C and CAN/ULC-S104. Three hour A label single fire door 4 ft by 10 ft. Pairs of doors three hour at 8 ft by 8 ft with the 3/4 inch latch option; pairs 90 minute at 8 ft by 10 ft with the 3/4 inch latch option
- California Fire Code
- Levers with a return to door of 1/2 inch or less comply: Rhodes, Sparta, Tubular, Omega, Longitude, and Boardwalk
- Florida Building Code
- Complies with Florida Building Code (ASTM E330, E1886, E1996) and Miami Dade (TAS 201, 202, 203) hurricane requirements
- Federal
- Meets FF-H-106C Series 161. BAA compliant on all functions
- Warranty
- 10 year mechanical and 3 year electro-mechanical
Frequently Asked Questions
- What does ND25 mean?
- It is the Schlage function code for the exit lock with exterior blank plate. There is a blank plate outside, a lever inside, and a deadlatch.
- Can I get in from outside?
- No. There is no outside lever and no cylinder, only a blank plate, so the door cannot be opened from outside by any means. Entry has to happen at another opening.
- Can people always get out?
- Yes. The inside lever is always free for immediate egress, which is the entire purpose of the function.
- How is this different from the ND12 exit lock?
- What is on the outside face. The ND12 has a fixed lever outside that acts as a pull but does not retract the latch. The ND25 has a blank plate and no lever at all. Neither opens from outside. Choose ND12 when the door still needs an outside pull, ND25 when it should not have one.
- Can I get a request to exit signal?
- Not on this function. Schlage offers RX on the ND10, ND12, ND80, ND81, and ND96, and the ND25 is not among them. If you need an exit signal on an exit lock, specify the ND12 instead.
- Is there a keyed version?
- Yes, two. The ND25 x 70 classroom exit lock (ANSI F113) and the ND25 x 80 storeroom exit lock (ANSI F112) both keep the blank plate outside and add a cylinder in the inside lever.
- Why a deadlatch?
- A deadlatch resists the latch being pushed back out of the strike from outside, which matters on a door with no outside operation at all.
- Does the lever choice matter for code?
- It can. For the California Fire Code, levers with a return to door of 1/2 inch or less comply, which covers Rhodes, Sparta, Tubular, Omega, Longitude, and Boardwalk. Confirm the lever design against your local requirements.
- Can it go on a fire door?
- Yes. It is UL 10C and CAN/ULC-S104 listed for a 3 hour A label single fire door up to 4 ft by 10 ft. Pairs are covered at 8 ft by 8 ft for 3 hours, or 8 ft by 10 ft for 90 minutes, with the 3/4 inch latch option.
- What door thicknesses and backsets does it fit?
- Standard is 1-5/8 to 2-1/8 inch doors on a 2-3/4 inch backset. Optional configurations cover 1-3/8 inch up to 6 inch doors, and 2-3/8, 3-3/4, and 5 inch backsets.
