Cal-Royal NM8050 Heavy Duty Gr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$296.54
$258.99
Cal-Royal NM8050 Heavy Duty Grade 1 Office/Entrance Mortise Lockset with Auxiliary Deadlatch

Cal-Royal NM8050 Heavy Duty Grade 1 Office/Entrance Mortise Lockset with Auxiliary Deadlatch

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Model: NM8050-SS-RH-US26D
$296.54
$258.99
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$296.54
$258.99
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Cal-Royal NM8050 Heavy Duty Grade 1 Office/Entrance Mortise Lockset with Auxiliary Deadlatch

The Cal-Royal NM8050 is a Heavy Duty Grade 1 Office/Entrance mortise lockset (F04 function) engineered for 1-3/4" thick doors with a 2-3/4" backset. 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 meets ANSI/BHMA A156.13, Series 1000, Operational & Security Grade 1 Standards and is tested to exceed 1,000,000 cycles. It carries a UL Listed "A" Label (3-hour) fire rating for use on single or paired fire doors, making it a dependable choice for demanding commercial entrances.

Key Features

  • Door & Backset Specifications: Designed for 1-3/4" thick doors with a 2-3/4" backset; escutcheon measures 2 ½" W x 8 ¼" H x ½" T.
  • Heavy-Duty Cycle Rating: Exceeds 1,000,000 cycles per ANSI/BHMA A156.13, Series 1000 testing for long-term reliability in high-traffic commercial applications.
  • Robust Lockcase & Front 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".
  • Armored Front Plate: Wrought brass front attached by machine screws conceals lock mounting screws for tamper resistance.
  • Deadbolt & Latchbolt: 1" throw brass deadbolt, chrome plated with hardened steel rollers and anti-saw hardened pins, paired with a ¾" heavy duty anti-friction latch bolt.
  • Guardbolt & Stopworks: Extruded brass, chrome plated guardbolt and rocker-type brass, chrome plated stopworks for added security.
  • Non-Handed, Field-Reversible Design: Curved strike measures 4-7/8" x 1-1/4"; handing is easily field-reversible for flexible installation.
  • Cylinder & Options: Standard 6-pin solid brass "C" keyway cylinder with optional interchangeable core and optional electrified locks available.

Certifications & Compliance

  • ANSI/BHMA A156.13, Series 1000, Operational & Security Grade 1 Standards
  • Conforms to Federal Specification Type 86
  • UL Listed "A" Label (3-hour) fire rating; conforms to UL10C and UBC 7-2-1997
  • BHMA Certified Lifetime Warranty, Grade 1
  • Meets ADA (American Disability Act) regulations

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
  • Keyed: Yes
  • Product Attribute: Mortise Locks
  • Electronic: No
  • Product Function: Entrance/Office
  • Door Hand Direction: Field Reversible
  • Product Category: Mechanical Locks
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Cal-Royal NM8050?

Cal-Royal NM8050 mortise locksets deliver professional-grade reliability with heavy gauge steel lockcase construction, brass chrome-plated deadbolt and latchbolt components, and testing that exceeds 1,000,000 cycles under ANSI/BHMA Grade 1 standards. Engineered for demanding commercial entrance and office applications where fire rating, security, and dependable daily performance 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:
Entrance
Keyed:
Yes
Product Attribute:
Mortise Locks
Electronic:
No
Product Model:
NM8050
Product Function:
Entrance/Office
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 NM8050-SS-RH-US26D – Frequently Asked Questions

1) Will the Cal-Royal NM8050 mortise lockset fit a 1-3/4 inch commercial door?
That is exactly the door it is built for. The NM8050 is a single-thickness lock body sized for 1-3/4 inch doors with a 2-3/4 inch backset, which is the standard commercial mortise backset. The steel front measures 8 x 1-1/4 x 3/32 inches and works on flat doors as well as doors beveled 1/8 inch in 2 inches. If your openings are thicker than 1-3/4 inches, this is not the lock for them.
2) Do I have to order the Cal-Royal NM8050 left hand or right hand?
Handing is picked at order time, left hand or right hand, but the lock body itself is field reversible, so a crew that gets the wrong hand on site can flip it rather than sending it back. The curved strike is non-handed at 4-7/8 x 1-1/4 inches, and a curved-up strike can be requested instead.
3) Can I use the Cal-Royal NM8050 on a fire rated door?
Yes, on single doors and on pairs. The NM8050 carries a UL Listed A Label 3-hour fire rating, with an F mark stamped on the strike, and conforms to UL10C and UBC 7-2-1997. That F stamp is what an inspector looks for, so keep the supplied strike with the lock rather than reusing an old one.
4) What does the F04 office/entrance function on the Cal-Royal NM8050 actually do at the door?
Entrance/office function: the outside lever or knob can be locked and unlocked by key, and the lock also carries a separate 1 inch throw deadbolt for when the space is closed up. Rocker-type stopworks let you hold the outside trim locked without a key. It is a keyed lock, so it suits a tenant suite door or an office entry where staff need free egress but controlled entry.
5) I need a classroom function mortise lock for a 1-3/4 inch door, not an office lock. What should I order?
The Cal-Royal NM8050 is built for 1-3/4 inch doors with a 2-3/4 inch backset in entrance/office function. For classroom function on the same 1-3/4 inch door thickness, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset in the ML2000 Series. Classroom function is keyed from the outside to lock or unlock the outside lever, which is what most school and campus door schedules call for; the NM8050 uses entrance/office operation with an auxiliary deadlatch and a 1 inch throw deadbolt.
6) The opening needs electric lock or unlock control on the outside lever. What replaces the Cal-Royal NM8050?
The NM8050 is a mechanical lockset with no electronic operation. For access control at the lever, the Schlage L9092EU with 03A trim is a heavy duty corridor function mortise lock for 1-3/4 inch doors, keyed outside, with request to exit and 12/24VDC operation. The Command Access ML190 is a heavy duty motorized mortise lock in storeroom function with field selectable fail safe or fail secure operation on 24VDC, and the BEST 45HW is a heavy duty wired electromechanical mortise lock running 12V or 24V. All three require power to the door via hinge or loop, which the NM8050 does not.
7) What is the closest Grade 1 mortise lock to the Cal-Royal NM8050 if I need a storeroom function instead of office/entrance?
The Cal-Royal NM8050 is an entrance/office function mortise lockset carrying ANSI/BHMA Grade 1. If the opening needs storeroom function, where the outside lever is always locked and entry is by key only, the Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series with an Arcadia lever. The difference is operational: the NM8050 lets the inside occupant leave the outside trim unlocked for business hours, while the 8805FL keeps outside trim locked at all times. Choose by whether the room is staffed and opened daily or secured continuously.
8) Can I put the Cal-Royal NM8050 on a 1-5/8 inch door, and what works if I cannot?
The NM8050 is specified for 1-3/4 inch door thickness. For a thinner leaf in the 1-5/8 to 1-7/8 inch range, the Alarm Lock DL3500CR and DL2700CR Trilogy locks are Grade 1 mortise locks in classroom function covering 1-5/8 inch to 1-7/8 inch doors. Note those are electronic keypad locks, while the NM8050 is a mechanical, non-electronic lockset, so the credential and power questions come with them.
9) What should I use instead of the Cal-Royal NM8050 on a behavioral health or ligature-resistant opening?
The NM8050 uses conventional lever or knob trim on an SE escutcheon or SS sectional plate. Where the opening requires anti-ligature hardware, the TownSteel MRX-L-01 is a Grade 1 heavy duty stainless steel anti-ligature lever mortise lockset for 1-3/4 inch doors in passage function, and the MRX-A-01 is the arch trim version in satin stainless steel, also Grade 1 heavy duty passage 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 or push/pull operation rather than the NM8050's keyed entrance/office function.
10) We want to move the entrance to keypad or card access. What replaces the Cal-Royal NM8050 in the same mortise prep?
The NM8050 is a mechanical, non-electronic mortise lockset. For credentialed access in a mortise body, the Dormakaba E-Plex E5086 is a Grade 1 entry/egress electronic pushbutton and card mortise lock, and the Schlage LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and a 3 hour fire rating, matching the NM8050's UL Listed A Label 3 hour rating. The TownSteel FME-2000 is a Grade 1 heavy duty RFID mortise lockset in classroom function for 1-3/4 inch doors. Each adds credential management and power or battery considerations the NM8050 does not have.
11) Is a Baldwin 6301 mortise lock body a drop-in for the Cal-Royal NM8050?
No, the mortise prep will not line up. The Baldwin 6301 entry/apartment lock body uses a 2-1/2 inch backset, as does the 6310 entry/storeroom body; the Cal-Royal NM8050 is a 2-3/4 inch backset. A quarter inch of backset difference moves the cylinder and spindle centerlines relative to the door edge, so the existing bore and trim will not transfer. If the door is already prepped for 2-3/4 inch, stay with a 2-3/4 inch lock such as the NM8050 or the Hager 3810E.
12) What cylinder and keyway comes on the Cal-Royal NM8050, and can I key it into my existing system?
It ships with a 6-pin solid brass C keyway cylinder as standard. An interchangeable core version is available if your building is on an IC system and you rekey in-house. The deadbolt is brass with hardened steel rollers and anti-saw hardened pins, so it resists a saw attack at the bolt.
13) Is the Cal-Royal NM8050 heavy duty enough for a high traffic entrance?
It is tested to exceed 1,000,000 cycles under ANSI/BHMA A156.13 Series 1000 Operational and Security Grade 1, and the lock body conforms to Federal Specification Type 86. Construction is a heavy gauge zinc chromate steel lockcase with a wrought brass armored front that hides the mounting screws. That is the spec a school corridor or a lobby entry needs.
14) Does the Cal-Royal NM8050 meet ADA requirements for an accessible entrance?
The NM8050 meets ADA regulations. It also carries the ANSI/BHMA A156.13 Series 1000 Grade 1 rating and the UL A Label 3-hour fire listing, which is the combination a healthcare or education facility usually has to show on an entrance door.
15) My doors are thicker than 1-3/4 inches. Is there a Grade 1 mortise lock that covers them?
The NM8050 will not work there, it is fixed at 1-3/4 inches. Hager's 3800 Series covers a range instead: the 3810E passage mortise lock with escutcheon and a 2-3/4 inch backset is listed for 1-3/4 to 2-1/2 inch doors, as is the 3850E office lock with lever and escutcheon. Note those Hager models are passage and office non-keyed functions, so they are not a keyed entrance substitute.
16) The door does not need to be keyed at all. Is there a simpler mortise lock than the Cal-Royal NM8050?
The NM8050 is a keyed lockset with a 6-pin solid brass C keyway cylinder. On an opening that only needs the door to latch, the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, and the Falcon MA101 is a Grade 1 heavy duty mortise passage lock in the MA Series with field reversible operation and a fire rating. Both drop the cylinder and the deadbolt entirely, so there is no keying to specify and nothing to rekey later.
17) Are the Emtek 3102 Memphis and similar mortise entrance locksets equivalent to the Cal-Royal NM8050?
They are not. The Emtek 3102 Memphis, 3104 Hamilton, 3106 Manhattan and 3019 Brisbane are all dummy function mortise entrance locksets. Dummy trim has no latch and no locking mechanism at all; it is pull hardware that matches the look of an operating set, typically for an inactive leaf. The Cal-Royal NM8050 is a keyed, commercial, ANSI/BHMA Grade 1 entrance/office lockset with a working deadbolt and latchbolt. Order dummy trim only for the leaf that never operates.
18) I need the same office function but with a lever and escutcheon and no key. What is the alternative to the Cal-Royal NM8050?
The Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon, non-keyed, on a 2-3/4 inch backset, covering doors from 1-3/4 inch to 2-1/2 inch. It matches the NM8050's 2-3/4 inch backset and entrance/office intent but omits the cylinder, so there is no key to issue. The NM8050 is keyed with a 6-pin solid brass C keyway and is offered with SE escutcheon or SS sectional trim. Pick the 3850E where access is controlled elsewhere and the door only needs office-style operation.
19) Which mortise lock should I standardize on for a dormitory corridor door instead of the Cal-Royal NM8050?
The Sargent 7925 is a Grade 1 heavy duty mortise lock in the 7900 Series with dormitory exit function, rose trim and a single cylinder deadbolt, listed as corridor/dormitory function. Dormitory function is written for resident room doors where the deadbolt is thrown from inside and retracts on egress. The Cal-Royal NM8050 is entrance/office function with a 1 inch throw deadbolt and is offered with SE escutcheon or SS sectional trim rather than rose trim, so the two differ in both operation and trim footprint.
20) Is a Schlage PC10 an alternative to the Cal-Royal NM8050 for a passage opening?
Only if the door is prepped for a cylindrical lock. The Schlage PC10 is a Grade 1 passage cylindrical lock, non-keyed with rose, for 1-3/4 inch doors. The Cal-Royal NM8050 is a mortise lock, which requires a rectangular pocket machined into the door edge rather than the cross bore and edge bore a cylindrical lock uses. The two are not interchangeable in the same door without new prep. For a mortise pocket that needs passage function, use a mortise passage lock such as the Schlage PM010, also Grade 1 non-keyed for 1-3/4 inch doors.
21) Can I order just a mortise lock body without trim as an alternative to the Cal-Royal NM8050?
Yes, if the trim on the door is staying. The BEST 45H Series is a heavy duty mortise lock body in public entrance function with field reversible operation, and the 45HCA Series is a heavy duty mortise lockbody with intruder function. Both are lock bodies, so lever, rose or escutcheon and cylinder are specified separately. The Cal-Royal NM8050 ships as a complete lockset with SE escutcheon or SS sectional trim and a 6-pin solid brass C keyway cylinder, and like the 45H it is field reversible for handing.
22) Which mortise lock covers a privacy restroom door if the Cal-Royal NM8050 is the entrance standard?
The Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset for doors 1-3/4 inch to 2 inch, matching the NM8050's 2-3/4 inch backset so the door edge prep is consistent across the opening schedule. Privacy function locks by inside thumbturn with emergency outside release rather than by key. The Cal-Royal NM8050 remains the keyed entrance/office set with a 1 inch throw deadbolt for the doors that need cylinder control.
23) What finishes does the Cal-Royal NM8050 come in, and can I match the rest of my building?
Six finishes: US3 polished brass, US4 satin brass, US10B antique bronze oiled, US26 polished chrome, US26D satin chrome, and US32D satin stainless steel. Every one is available in both hands and in both the SE escutcheon and SS sectional trims, so a facility standardizing on one finish can carry it across every opening without changing trim style.
How fast can I get the Cal-Royal NM8050-SS-RH-US26D delivered?
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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 NM8050-SS-RH-US26D come with a warranty?
Absolutely. The Cal-Royal NM8050-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 NM8050-SS-RH-US26D?
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