Cal-Royal NM8440 Heavy Duty Gr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$282.89
Cal-Royal Cal-Royal NM8440 Heavy Duty Grade 1, Privacy with Deadbolt Mortise Lockset NM Series NM8440

Cal-Royal NM8440 Heavy Duty Grade 1 Privacy Mortise Lockset with Deadbolt

(No reviews yet) Write a Review

Model: NM8440-SS-RH-US26D
$282.89
Selected Finish is
Selected Trim Design is
Selected Handing is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$282.89
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Cal-Royal NM8440 Heavy Duty Grade 1 Privacy Mortise Lockset with Deadbolt

The Cal-Royal NM8440 is a Heavy Duty Grade 1 Privacy with Deadbolt mortise lockset designed for doors 1-3/4" thick with a 2-3/4" backset. The latch bolt retracts by knob or lever from either side, while the deadbolt is thrown or retracted by the inside thumbturn; throwing the deadbolt locks the outside knob or lever, and rotating the inside knob or lever simultaneously retracts both the deadbolt and latch bolt for immediate egress. Built with a heavy gauge zinc chromate steel lockcase and an 8" x 1-1/4" x 3/32" heavy gauge steel front, this lockset is UL Listed "A" Label (3 hours) for fire door applications and meets ANSI/BHMA A156.13, Series 1000, Grade 1 standards, exceeding 1,000,000 cycles.

Key Features

  • Door & Backset Specifications: Designed for doors 1-3/4" thick with a 2-3/4" backset for standard commercial door preparation.
  • Heavy-Duty Durability: Meets ANSI/BHMA A156.13, Series 1000, Operational & Security Grade 1 standards and exceeds 1,000,000 cycles for long-term reliability in high-traffic applications.
  • Heavy-Duty Construction: Heavy gauge zinc chromate steel lockcase with an 8" x 1-1/4" x 3/32" heavy gauge steel front that accommodates flat doors and doors beveled 1/8" in 2".
  • Deadbolt & Latchbolt: 1" throw brass, chrome-plated deadbolt with hardened steel rollers and anti-saw hardened pins, paired with a brass, chrome-plated latchbolt featuring anti-friction design.
  • Armored Front: Wrought brass armored front attached by machine screws conceals lock mounting screws for added security.
  • Guardbolt & Stopworks: Extruded brass, chrome-plated guardbolt and rocker-type brass, chrome-plated stopworks for smooth, secure operation.
  • Strike Plate: Brass, non-handed curved strike measuring 4-7/8" x 1-1/4", with a curved-up strike available upon request.
  • Field-Reversible Handing: Handed design that is easily field-reversible to accommodate either door swing.
  • Escutcheon Dimension: 2 1/2" W x 8 1/4" H x 1/2" T for a clean, low-profile trim appearance.

Certifications & Compliance

  • UL Listed "A" Label (3 hours) for use on fire doors, single or pair, with "F" mark stamped on strike
  • Meets ANSI/BHMA A156.13, Series 1000, Operational & Security Grade 1 Standards; lock body conforms to Federal Specification Type 86, exceeding 1,000,000 cycles
  • Conforms and meets ADA (American Disability Act) Regulations
  • BHMA Certified Lifetime Warranty

Technical Specifications

  • Product Group: Mechanical Locks
  • ANSI/BHMA: Meets ANSI/BHMA A156.13, Series 1000, Operational & Security Grade 1 Standards Lock body conforms to Federal Specification Type 86, and all dimensional and operational performances, Exceeds 1,000,000 cycles
  • Product Subgroup: Mortise Locks and Trim
  • Product Type: Mortise Locks
  • Subcategory: Mortise Lockset
  • Latch Throw: 1" (deadbolt)
  • Commercial/Residential: Commercial
  • Cylinder and Keyways: 6-Pin solid brass "C" Keyway Standard
  • Lock Type: Mortise
  • Lock Function: Privacy/Bed/Bath
  • Keyed: No
  • Product Attribute: Mortise Locks
  • Electronic: No
  • Product Function: Privacy/Bed/Bath
  • Door Hand Direction: Field Reversible
  • Product Category: Mechanical Locks
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings
  • Bedroom and Bathroom Doors Requiring Privacy Function

Why Cal-Royal NM8440?

Cal-Royal NM8440 mortise locksets deliver professional-grade reliability with a heavy gauge zinc chromate steel lockcase, brass chrome-plated deadbolt and latchbolt components, and a design tested to exceed 1,000,000 cycles. Engineered for demanding commercial applications where dependable privacy function, fire-rated performance, and ADA compliance are essential.

Product Specs

Product Group:
Mechanical Locks
ANSI/BHMA:
Meets ANSI/BHMA A156.13, Series 1000, Operational & Security Grade 1 Standards Lock body conforms to Federal Specification Type 86, and all dimensional and operational performances, Exceeds 1,000,000 cycles
UL Listing Type:
UL Listed "A" Label (3 hours), for use on fire doors, single or pair of doors. "F" mark stamped on strike
Grade:
Grade 1
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Locks
Subcategory:
Mortise Lockset
Latch Throw:
1" (deadbolt)
Commercial/Residential:
Commercial
Cylinder and Keyways:
6-Pin solid brass "C" Keyway Standard
Lock Type:
Mortise
Lock Function:
Privacy/Bed/Bath
Keyed:
No
Product Attribute:
Mortise Locks
Electronic:
No
Product Model:
NM8440
Product Function:
Privacy/Bed/Bath
Door Hand Direction:
Field Reversible
Door Thickness Range:
1-3/4"
Door Strike:
Brass, non-handed curved Strike 4-7/8" x 1 1/4". Curved-up Strike available upon request
Product Category:
Mechanical Locks
Product Substrate:
Steel
Backset (Distance):
2-3/4"
Department:
Door Hardware

Cal-Royal NM8440-SS-RH-US26D – Frequently Asked Questions

1) Will the Cal-Royal NM8440 privacy mortise lock fit a 1-3/4 inch door with a 2-3/4 inch backset prep?
That is exactly the prep it is built for. The NM8440 is a single-thickness lock for 1-3/4 inch doors with a 2-3/4 inch backset, which is the standard commercial mortise prep. The 8 x 1-1/4 x 3/32 inch steel front fits flat doors and doors beveled 1/8 inch in 2 inches. If your doors are thicker than 1-3/4 inches, this is not the lock body for that opening.
2) How does the Cal-Royal NM8440 privacy function actually work from inside and outside the room?
Knob or lever retracts the latch from either side. The inside thumbturn throws the deadbolt, and once it is thrown the outside knob or lever is locked out. Turning the inside knob or lever pulls back both the deadbolt and the latch at once, so anyone inside gets out in a single motion. There is no key: it is a non-keyed privacy/bed/bath function.
3) Can I use a privacy mortise lock like the NM8440 on a fire-rated door?
Yes. The NM8440 is UL Listed "A" Label for 3 hours, for single doors or pairs, with the "F" mark stamped on the strike. It also meets ANSI/BHMA A156.13, Series 1000, Grade 1, with the lock body conforming to Federal Specification Type 86 and testing past 1,000,000 cycles. That combination is what an inspector on a healthcare or school corridor is looking for on a restroom or patient-room door.
4) Do I have to order the Cal-Royal NM8440 handed, or can it be flipped in the field?
Handing is an order option (left hand or right hand), but the lock is field reversible, so an installer who ends up with the wrong hand on site can swing it over rather than send it back. Both hands are offered in every finish and both trim styles.
5) Will the NM8440 latch into the strike prep already in my frame?
It ships with a brass, non-handed curved strike measuring 4-7/8 by 1-1/4 inches, which is the common ANSI mortise strike footprint, and a curved-up strike can be requested instead. The deadbolt throws 1 inch, so the frame needs a bolt pocket deep enough behind that strike. If your existing frame has an older or non-standard cutout, plan on replacing the strike with the one supplied rather than reusing what is in the jamb.
6) What is the closest Grade 1 privacy mortise lock to the Cal-Royal NM8440 from another brand?
The Hager 3840S in the 3800 Series is the nearest match: it is a Grade 1 privacy mortise lock with the same 2-3/4 inch backset as the NM8440, and it fits doors 1-3/4 inch to 2 inch, which covers the 1-3/4 inch doors the NM8440 is designed for. The difference is the bolt work - the NM8440 pairs its latchbolt with a 1 inch throw deadbolt operated by the inside thumbturn, so if the opening needs a deadbolt behind the privacy function, the NM8440 carries it.
7) The bathroom door does not need to lock at all - what mortise lock should I use instead of the NM8440?
For an opening that only needs the door to latch, a passage mortise lock drops the locking hardware entirely. The Falcon MA101 is a Grade 1 heavy duty fire rated passage mortise lock in the MA Series and is field reversible, the same handing flexibility the NM8440 offers. The Hager 3810E and 3810S are Grade 1 passage mortise locks on a 2-3/4 inch backset, matching the NM8440 backset, with the 3810E carrying escutcheon trim and the 3810S a rose. Schlage PM010 is another Grade 1 non-keyed passage mortise latch for 1-3/4 inch doors.
8) Which mortise lock do I use if the door needs to be keyed instead of privacy?
The Cal-Royal NM8440 is a non-keyed privacy function, so an opening that has to be controlled by key needs a different lock body. For storeroom control the Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series with an Arcadia lever. For a classroom opening the Corbin Russwin ML2003 is a Grade 1 classroom mortise lockset in the ML2000 Series for 1-3/4 inch doors, the same door thickness the NM8440 is built for. For an entrance or apartment opening the Baldwin 6301 mortise lock body is entrance/apartment function for doors 1-3/4 inch and over, on a 2-1/2 inch backset rather than the 2-3/4 inch of the NM8440.
9) I only need a deadbolt on the door, not a full lockset - what should I order instead of the NM8440?
A standalone mortise deadbolt covers that. The Sargent 4874 is a double cylinder mortise deadbolt in the 4870 Series on a 2-3/4 inch backset, the same backset the Cal-Royal NM8440 uses, so the door prep centerline matches. The Kaba Ilco 185 Series mortise lock is also a deadbolt function and is supplied with no handing. Both are deadbolt only - the NM8440 combines a latchbolt retracted by knob or lever with its 1 inch throw deadbolt, so if the door still needs to latch when unlocked, the deadbolt-only bodies will not do that job.
10) What privacy mortise lock should I use on a behavioral health or patient room door instead of the NM8440?
Anti-ligature trim is the deciding factor there. The TownSteel MRX-A-01 is a Grade 1 heavy duty ligature resistant arch trim mortise lockset in satin stainless steel for 1-3/4 inch doors, and the MRX-L-01 is the Grade 1 heavy duty anti-ligature lever version, also stainless for 1-3/4 inch doors. The Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset that is ligature resistant and ADA compliant in satin stainless steel. All three are passage function, so they do not lock; the Cal-Royal NM8440 provides the privacy function with deadbolt and meets ADA regulations, with conventional escutcheon or sectional trim.
11) The doors in my building are 1-5/8 inch thick - can I still use the Cal-Royal NM8440?
The NM8440 is built for 1-3/4 inch thick doors. For thinner leaves, the Alarm Lock Trilogy bodies cover 1-5/8 inch to 1-7/8 inch: the DL2700CR is a Grade 1 classroom function electronic mortise lock with a weatherproof design, the DL3500CR is a Grade 1 classroom electronic mortise lock with 300 user codes, and the DL4500DB is a Grade 1 electronic mortise deadbolt with 2,000 user codes and a privacy keypad. The Marks USA 21AC and 22AC ornamental iron mortise locks go the other direction for 1 inch doors such as storefront stiles.
12) I need a Grade 1 mortise lock for a 3 hour fire door - which options carry that rating?
The Cal-Royal NM8440 is UL Listed A Label for 3 hours on fire doors, single or pair, with the F mark stamped on the strike, and it meets ANSI/BHMA A156.13 Series 1000 Grade 1. Among alternates, the Falcon MA101 is a Grade 1 heavy duty fire rated passage mortise lock, and the Schlage Electronics LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 3 hour fire rating, 125kHz proximity reader, and Greenwich trim, right hand. The MA101 is passage and the LEMD-GRW is credential based, so the NM8440 is the one of the three carrying mechanical privacy with a deadbolt.
13) For a dorm room door, should I use the Cal-Royal NM8440 or a dormitory function lock?
Dorm rooms usually want key control from the corridor. The Sargent 7925 is a Grade 1 heavy duty dormitory exit function mortise lock in the 7900 Series with rose trim and a single cylinder deadbolt. The Cal-Royal NM8440 is non-keyed privacy with a 1 inch throw deadbolt operated only by the inside thumbturn, so there is no outside key access - which suits the bathroom or bedroom door inside a suite rather than the entry door to it.
14) What do I need to specify when ordering a Cal-Royal NM8440 mortise lockset?
Three choices: handing (LH or RH), trim design, and finish. Trim is either SE escutcheon, a 2-1/2 inch wide by 8-1/4 inch high by 1/2 inch thick plate, or SS sectional trim on roses. Finishes are US3 polished brass, US4 satin brass, US10B antique bronze oiled, US26 polished chrome, US26D satin chrome, and US32D satin stainless steel. All six finishes are available in both trim styles and both hands.
15) Should I use a privacy mortise lock with a deadbolt or a plain privacy latch on restroom and patient room doors?
A deadbolt-equipped privacy lock like the NM8440 gives a positive 1 inch throw that resists being pushed back, and the inside lever retracts both bolts together for egress. A privacy lock without the deadbolt only holds on the latch. Where you want the same look and Grade 1 build but no deadbolt, the Hager 3840S 3800 Series privacy mortise lock uses the same 2-3/4 inch backset. On doors that need no locking at all, a passage function such as the Falcon MA101 or Schlage PM010 is the correct part.
16) Is the Cal-Royal NM8440 lever trim ADA compliant for a commercial restroom?
Lever trim on the NM8440 conforms to ADA regulations, and the inside lever retracts the deadbolt and latch together so no tight grasping or twisting is needed to get out. Note the knob versions are also offered on the same lock body, and a knob is not the ADA choice.
17) How durable is the Cal-Royal NM8440 for a high traffic building?
The lockcase is heavy gauge zinc chromate steel with brass chrome-plated deadbolt and latchbolt, and the deadbolt carries hardened steel rollers and anti-saw pins. It is rated Grade 1 under ANSI/BHMA A156.13 Series 1000 for both operational and security grade, exceeding 1,000,000 cycles. The armored front is wrought brass and covers the lock mounting screws so they cannot be attacked from the door edge.
18) I need keyed access on the same doors as the NM8440. What do I order instead?
The NM8440 is non-keyed, so it takes no cylinder and cannot be opened from the outside with a key. For keyed openings on the same style of Grade 1 mortise prep, look at a classroom function such as the Corbin Russwin ML2003, which is also a Grade 1 mortise lock for 1-3/4 inch doors, or a dormitory/exit function like the Sargent 7925 with its single cylinder deadbolt. For storeroom function, the Accentra 8805FL is a Grade 1 mortise storeroom lock.
19) What is the difference between the Cal-Royal NM8440 and the Hager 3850E office mortise lock?
Function. The Hager 3850E is a Grade 1 office function mortise lock with lever and escutcheon, non-keyed, on a 2-3/4 inch backset for doors 1-3/4 inch to 2-1/2 inch. The Cal-Royal NM8440 is privacy/bed/bath function on the same 2-3/4 inch backset, with the inside thumbturn throwing a 1 inch deadbolt that locks the outside trim and a single turn of the inside knob or lever retracting both bolts for immediate egress. Office function secures an office door from within during occupancy; privacy is intended for bedroom and bathroom doors.
20) Is there an electronic privacy mortise lock instead of a mechanical thumbturn one?
Yes. The Schlage CO-100 standalone electronic mortise lock is a Grade 1 heavy duty privacy function lock with a keypad reader for 1-3/4 inch doors - the same privacy function and door thickness as the Cal-Royal NM8440, but code operated rather than mechanical. The Schlage Electronics LEBMB-ADD is a mobile enabled mortise lock with push button and LED covering privacy, office, and apartment functions, Grade 2 with a 3 hour fire rating, on 1-3/4 inch doors. The NM8440 is a non-electronic lock, so it needs no power, batteries, or credential management.
21) Will a Sargent 130KB or 130W thumbturn work as a replacement for the NM8440?
No - those are trim pieces, not locks. The Sargent 130KB is a standard duty mortise thumbturn in the 8200 Series and the Sargent 130W is a mortise thumbturn with a round backplate in the 7800 Series. Each is the thumbturn alone, meant to fit its own lock body. The Cal-Royal NM8440 is a complete mortise lockset with lock body, latchbolt, 1 inch throw deadbolt, escutcheon or sectional trim, and a brass non-handed curved strike measuring 4-7/8 inch by 1-1/4 inch. If only the inside thumbturn is worn, that is a trim part; if the lock body itself is being replaced, it is the NM8440.
22) Are the Emtek mortise entrance locksets an alternative to the Cal-Royal NM8440?
They serve a different purpose. The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton, and 3106 Manhattan mortise entrance locksets are all dummy function - fixed trim with no operating latch, used on inactive leaves and closet doors for appearance. The Cal-Royal NM8440 is a working privacy lockset whose latch retracts by knob or lever from either side and whose deadbolt throws from the inside thumbturn. If the door must actually latch and lock, a dummy set will not substitute.
23) Can I use a BEST 45H mortise lock body in place of the Cal-Royal NM8440?
Only if the opening wants a different function. The BEST 45HCAC is a heavy duty mortise lock body in the 45H Series with public entrance function and field reversible operation, and the 45HCAINL is a heavy duty mortise lockbody with intruder function. Both are lock bodies, so trim is ordered separately. The Cal-Royal NM8440 ships as a complete privacy lockset with escutcheon or sectional trim and is itself field reversible, so the handing can be changed on site.
24) Which mortise lock do I use if the door has to be released from an access control system?
That calls for an electrified body. The Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit and 12/24VDC operation for 1-3/4 inch doors - the same door thickness as the Cal-Royal NM8440. The BEST 45HW is a heavy duty wired electromechanical mortise lock with 12V/24V operation, and the Command Access ML190 is a heavy duty motorized mortise lock with field selectable fail safe or fail secure operation on 24VDC in storeroom function. The NM8440 is a non-electronic lock and takes no wiring.
25) Is the Schlage L0170 dummy trim a substitute for the NM8440?
No. The Schlage L0170 is Grade 1 heavy duty half dummy trim in the L Series - a non-keyed dummy lever for 1-3/4 inch doors, with no latch and no bolt. The Cal-Royal NM8440 is a full privacy mortise lockset for the same 1-3/4 inch door thickness, with a latchbolt, a 1 inch throw deadbolt, and a heavy gauge steel front measuring 8 inch by 1-1/4 inch by 3/32 inch mortised into the door edge. Dummy trim mounts to the door face and needs no mortise pocket, so the two are not interchangeable in either direction.
26) Is a cylindrical lock like the Schlage PC10 an option instead of a mortise lock?
It depends on the door prep. The Schlage PC10 is a Grade 1 passage cylindrical lock, non-keyed with rose, for 1-3/4 inch doors. Cylindrical locks install into a bored hole rather than a rectangular mortise pocket. The Cal-Royal NM8440 is a mortise lock requiring a mortise pocket in the door edge to take its 8 inch by 1-1/4 inch by 3/32 inch steel front, and it is privacy function with a deadbolt where the PC10 is passage. On a door already prepped for a mortise lock, swapping to cylindrical means new door prep.
27) Can I standardize a whole floor on the NM8440 and still get electronic access on a few doors?
The NM8440 is a mechanical lock with no electronic option, so any door needing credentials or audit trail needs a different unit. Schlage CO-100 is a standalone electronic mortise lock in privacy function for 1-3/4 inch doors, and the Schlage LEMD-GRW ENGAGE wireless mortise lock is Grade 1 with a 3 hour fire rating. Both sit in the same 1-3/4 inch mortise prep as the Cal-Royal, so the door prep stays consistent across the floor.
How fast can I get the Cal-Royal NM8440-SS-RH-US26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Cal-Royal NM8440-SS-RH-US26D come with a warranty?
Absolutely. The Cal-Royal NM8440-SS-RH-US26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Cal-Royal NM8440-SS-RH-US26D?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Cal-Royal NM8440-SS-RH-US26D from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!