BEST 45H Series Heavy Duty Mor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,369.00
$801.15
BEST BEST 45H Series (D - Storeroom Function) - Rose Trim Heavy Duty Mortise Lock, Single Keyed BES-45H-D-RS

BEST 45H Series Heavy Duty Mortise Lock with Storeroom Function and Rose Trim

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Model: 45H7D3H626
$1,369.00
$801.15
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,369.00
$801.15
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BEST 45H Series Heavy Duty Mortise Lock with Storeroom Function and Rose Trim

Professional Grade Mortise Lock for Commercial Security Applications

The BEST 45H Series Heavy Duty Mortise Lock delivers commercial-grade security with storeroom function and rose trim configuration. Featuring a 2-3/4" backset and ANSI A156.13 Grade 1 operation and strength certification, this mortise lock is engineered with 0.095" cold rolled steel construction for demanding commercial applications. The solid one-piece stainless steel anti-friction latch provides 50% more surface contact with strike for superior strength and security.

Professional Features & Benefits

  • Heavy-Duty Steel Construction: 0.095" cold rolled steel case, cover, and armored front provide exceptional durability and strength for high-traffic commercial environments.
  • Enhanced Latch Design: Solid one-piece stainless steel anti-friction latch offers 50% more surface contact with strike for superior strength and security with precision-engineered curve for enhanced cycle life.
  • Grade 1 Performance: ANSI A156.13 Series 1000 Grade 1 Operation and Strength certification ensures reliable performance in demanding commercial applications.
  • Reversible Operation: Non-handed design with reversible latch that rotates 180 degrees for easy handing change without opening case, plus four position hub toggle for flexible configuration.
  • Roller Bearing Mechanism: Roller bearing hub mechanism provides smooth, wear-resistant operation with lever return spring mechanism in trim for enhanced protection against lever droop.
  • Armored Front Protection: Completely surrounds latch and deadbolt providing increased lateral strength with staked assembly design for self-alignment during installation.
  • Enhanced Case Integrity: Four case cover screws at each corner plus interlocking armored front and cover design at the latch for maximum structural integrity.
  • Antimicrobial Finish Options: Available with UltraShield antimicrobial protected coating (626AM, 630AM) for healthcare, education, and food service applications where cleanliness is priority.

Technical Specifications

45H Series –The design and operation of the BEST® mortise lock meets the intent
of the standard for ANSI A117.1 section 404.2.6.
Builders Hardware Manufacturers Association:
45H Series –ANSI A156.13, Series 1000, Grade 1 Operation and Strength, Grade 2 Security. To meet Grade 1 Security, a drill resistant core
(1CD, 1CDP, 1CDF, or 1CDX) must be used with escutcheon trims, and 1EK7K4 high security cylinder must be used with sectional trims.
47H Series – ANSI A156.13, Series 1000, Grade 1 Operational, Strength, and Security

Auxiliary bolt – Stainless steel, non-handed.
Backset – 2-3/4"
Case –0.095” cold rolled steel, 5- 7/8" H x 7/8" D x 4-1/16" W. Steel is zinc dichromate plated for corrosion protection.
Deadbolt – Stainless steel, 1" throw.
Latchbolt –Solid stainless steel, 3/4" throw. Latch is oil-impregnated for anti-friction operation. Reversible without opening case.
Strike – For complete strike package spec’s see page 5.
Door Thickness – Standard lock configuration designed for doors 1-3/4" thick. Thick door configuration available for doors up to
5" thick (specify thickness when ordering).
Faceplate –Stainless steel, brass or bronze material, 8" H x 1-1/4" W x 1/16" T. Lock face automatically adjusts to proper bevel during
installation.
Products protected by one or more of the following patents: 4,873,853 5,590,555 5,794,472
Finishes –
• 605 - bright brass, clear coated
• 606 – satin brass, clear coated
• 611 – bright bronze, clear coated
• 612 – satin bronze, clear coated
• 613* – oxidized satin bronze, oil rubbed
• 618 – bright nickel plated, clear coated (brass base material)
• 619 – satin nickel plated, clear coated (brass base material)
• 622 – flat black coated (brass base material) 625 – brightchromium plated (brass base material)
• 626 – satin chromium plated (brass base material)
• 629 – bright stainless steel
• 630 – satin stainless steel
• 690* – dark bronze coated (brass base material)
*613 finish is designed to wear over time, providing an “antique” appearance.
*690 finish will continue as a dark brown appearance over time.
Antimicrobial Finish –
• 626AM – satin chrome plated with UltraShield™ antimicrobial protected coating
• 630AM – satin stainless steel with UltraShield™ antimicrobial protected coating
The BEST UltraShield finish inhibits the growth of bacteria and other microbes on the surface of the hardware.
NOTE: BEST UltraShieldTM option is recommended for use on any hardware application where product cleanliness is a high priority. i.e;.
Hospital/Healthcare, Elderly Care, Education, Transportation, Food-Service, Hospitality.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness (standard 1-3/4" or up to 5" thick door configuration), mortise pocket dimensions, and handing requirements.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper backset alignment.
  3. Prepare door mortise pocket and frame strike pocket according to specifications, ensuring proper clearances for latch and deadbolt operation.
  4. Install mortise lock case into door pocket and secure with provided screws, utilizing the self-aligning trim mechanism for accurate positioning.
  5. Install strike and strike box assembly in frame, ensuring proper alignment with latch and deadbolt for smooth operation.
  6. Test lock operation including latch retraction, deadbolt extension, and key function to verify proper installation and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

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

Why Choose BEST Quality?

BEST 45H Series mortise locks deliver professional-grade reliability with 0.095" cold rolled steel construction and ANSI A156.13 Grade 1 certification for demanding commercial applications. The solid stainless steel anti-friction latch and roller bearing hub mechanism provide enhanced cycle life and smooth operation. Engineered for demanding commercial applications where dependable security and long-term performance are essential.

Product Specs

Series:
45H
Standard Cylinder:
SFIC Prep Less Core
Duty Level:
Heavy Duty
Keyed Function:
Single Cylinder
Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Locks
Subcategory:
Mortise
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Mortise
Lock Function:
Storeroom
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Storeroom
Face Plate:
8" H x 1-1/4" W x 1/16" T
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

BEST 45H7D3H626 – Frequently Asked Questions

1) What does storeroom function mean on a BEST 45H mortise lock, and is it the right function for a mechanical or supply room?
Storeroom function means the outside lever is always locked. A key retracts the latch to get in, and the lever never stays unlocked, so the door cannot be left open by accident after someone passes through. Inside, the lever always retracts the latch for free egress. That is exactly the behavior you want on a storeroom, mechanical room, IT closet, or any space that must stay secure without staff remembering to lock it. If you need the outside lever to stay unlocked during business hours, this is the wrong function - look at an office or entrance function instead.
2) Does the BEST 45H mortise lock come with a core, and what cylinder does it take?
It ships with an SFIC prep and no core, so you have to supply the small format interchangeable core keyed to your system - the lock body is drilled and prepped for it but the core is a separate line on the order. It is a single cylinder keyed lock, keyed outside only. Worth knowing for a spec job: the 45H is rated Grade 1 for operation and strength but Grade 2 for security as standard. To reach Grade 1 security you need a drill resistant core (1CD, 1CDP, 1CDF or 1CDX) with escutcheon trim, or a 1EK7K4 high security cylinder with sectional trim.
3) Do I have to specify handing when I order a BEST 45H mortise lock?
No. The 45H is non-handed. The latch is reversible and rotates 180 degrees to change hand without opening the case, and the hub has a four position toggle, so one lock covers left and right hand openings. That matters if you are buying for a building and want a single part number on the shelf rather than a handed pair. The lock face also self-adjusts to the proper bevel during installation.
4) What trim and lever options do I need to pick when ordering a BEST 45H rose trim mortise lock?
Three choices decide the order. Trim style: H is a 2-3/4 inch flat rose, R is a 2-3/4 inch concave rose, S is a larger 3-1/2 inch flat rose. Lever style: 12 solid tube with no return, 3 solid tube with return, 4 round knob, contour with angle return, curved with return, curved without return, or gull wing. Finish: 605, 606, 611, 612, 613, 618, 619, 622, 625, 626, 626AM, 629, 630, 630AM and 690. If you are matching existing doors in a building, the rose diameter is the one that shows - a 3-1/2 inch S rose covers old prep or wear rings that a 2-3/4 inch rose will not.
5) What else does ZenSupply carry that is a direct equivalent to the BEST 45H storeroom mortise lock?
For a straight mechanical Grade 1 storeroom mortise lock, the closest peers are the Accentra 8805FL from the 8800 Series with an Arcadia lever, and the Cal-Royal NM8080, which is a Grade 1 storeroom mortise lockset with an interchangeable core option and is listed for 1-3/4 inch doors. The Cal-Royal is the nearest match if you specifically need the interchangeable core path the 45H uses with its SFIC prep. The Sargent 7925 is a Grade 1 heavy duty mortise with rose trim as well, but it is a dormitory exit function with a single cylinder deadbolt, which behaves differently from storeroom.
6) Can I use the BEST 45H on a classroom door that needs to be locked down from inside?
No, not with the storeroom function. Storeroom keeps the outside lever locked permanently and there is no inside keyed control, so a teacher cannot lock the corridor side from within the room. For that you want a classroom security or intruder function - ZenSupply carries the Marks USA LA318GJ classroom security indicator mortise lockset, the Cal-Royal NM8070 Grade 1 classroom mortise for 1-3/4 inch doors, and the Corbin Russwin ML2003 Grade 1 mortise classroom lockset. BEST builds classroom functions in this same 45H family, so you can keep the trim, finish and SFIC keying consistent and only change the function code.
7) What is the closest cross-brand equivalent to the BEST 45H storeroom mortise lock?
The Cal-Royal NM8080 is a heavy duty Grade 1 storeroom mortise lockset with an interchangeable core option, which lines up closely with the BEST 45H storeroom function and its SFIC prep less core standard cylinder. The Accentra 8805FL is also a Grade 1 storeroom mortise lock, supplied with the Arcadia lever. The NM8080 is listed for 1-3/4 inch doors; the 45H standard configuration is built for 1-3/4 inch doors with a thick door configuration available up to 5 inch when specified at order.
8) The opening is a classroom door, not a storeroom - what mortise lock should be used instead of the 45H storeroom?
Storeroom function keeps the outside lever locked at all times and is the wrong function for a classroom opening. For classroom function in a Grade 1 mortise lock, the Cal-Royal NM8070 and the Corbin Russwin ML2003 are both classroom mortise locksets listed for 1-3/4 inch doors. Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset, also for 1-3/4 inch doors, and ships with an ANSI strike and a steel escutcheon measuring 8-1/2 inch H x 2-3/4 inch W x 7/16 inch.
9) Which mortise lock replaces a storeroom lock on an office or entrance door that needs to be left unlocked during business hours?
An office or entrance function lets the outside lever be left retracted for the day, which a storeroom lock will not do. The Cal-Royal NM8050 is a heavy duty Grade 1 office/entrance mortise lockset with an auxiliary deadlatch for 1-3/4 inch doors, and the Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon on a 2-3/4 inch backset for doors 1-3/4 inch to 2-1/2 inch, supplied non-keyed. The 3850E shares the 2-3/4 inch backset used by the BEST 45H, so the door prep carries over.
10) Will a Baldwin 6310 mortise lock body drop into the same door prep as a BEST 45H?
No. The Baldwin 6310 entry/storeroom knob by knob mortise lock body and the 6301LS lever by lever entry/apartment body are both 2-1/2 inch backset, while the BEST 45H is 2-3/4 inch backset. That difference moves the lever and cylinder centerline relative to the door edge, so the mortise pocket and cross bores do not line up. The 6310 is listed for doors 1-3/8 inch and over.
11) What mortise lock is used on a behavioral health or anti-ligature opening instead of a standard storeroom lock?
Standard lever trim like the BEST 45H curved and gull wing levers presents a ligature point. TownSteel offers the MRX-A-01 with satin stainless steel ligature resistant arch trim and the MRX-L-01 stainless steel Grade 1 heavy duty anti-ligature lever, both passage function for 1-3/4 inch doors. 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 rather than keyed storeroom.
12) Which lock should be used on a narrow aluminum storefront door rather than a heavy duty mortise lock?
A hollow metal or wood door lock does not fit an aluminum stile. The Alarm Lock DL1300NW Trilogy Networx wireless electronic mortise lock with keypad is built for Adams Rite deadlatches, the Dormakaba E-Plex 2066 is a wide stile lock, and the Kaba Ilco BR Series is a glass door bottom rail lock. The BEST 45H uses an 8 inch H x 1-1/4 inch W faceplate and a 2-3/4 inch backset case sized for standard commercial door prep.
13) What mortise lock should be specified when the opening needs to be released from an access control system?
A mechanical storeroom lock cannot be released remotely. 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, listed for 1-3/4 inch doors in a corridor function. The Command Access ML190 is a heavy-duty storeroom function motorized mortise lock with field selectable EL/EU operation on 24VDC, which keeps the storeroom behavior the BEST 45H provides while adding electrical control.
14) What is the difference between the 626AM and 630AM antimicrobial finishes and the regular 626 and 630 on a BEST mortise lock?
626AM is satin chrome and 630AM is satin stainless, both carrying the UltraShield antimicrobial protected coating that inhibits growth of bacteria and other microbes on the hardware surface. The base 626 and 630 are the same colors without that coating. BEST recommends the AM versions wherever product cleanliness is a priority - hospitals and healthcare, elderly care, education, transportation, food service and hospitality. On a plain office or warehouse door, the standard finish does the same mechanical job.
15) Should I use rose trim or escutcheon trim on a BEST 45H?
Rose trim is two small round plates around the lever and cylinder, which is the lighter look and is what you want when the door face is clean and you do not need to hide anything. Escutcheon is a single long plate covering the whole prep. The functional difference on the 45H is the security path: to reach ANSI A156.13 Grade 1 security you use a drill resistant core (1CD, 1CDP, 1CDF, 1CDX) with escutcheon trim, or the 1EK7K4 high security cylinder with sectional trim like these roses. Pick the trim first, then the core that goes with it.
16) Is the BEST 45H mortise lock ADA compliant for lever operation?
The design and operation of the BEST mortise lock meets the intent of the standard for ANSI A117.1 section 404.2.6, which is the accessible door hardware operation clause. If accessibility is the driver, choose a lever rather than the 4 round knob option - a knob is not an accessible operating device.
17) I need a keypad or card reader on a storeroom door instead of a key - what mortise lock should I use?
The 45H is purely mechanical, no electronics in it, so if you want credentials on the door you are buying a different lock. From what ZenSupply stocks in electronic mortise: the Schlage CO-100 standalone keypad mortise lock is Grade 1 heavy duty for 1-3/4 inch doors, the Dormakaba E-Plex 2066 is a pushbutton keyless mortise, and the TownSteel FME-2000 is a Grade 1 heavy duty mortise with RFID. If you want the door to stay mechanical but be released from an access control panel, the Command Access ML190 is a heavy duty motorized storeroom mortise lock with field selectable fail safe or fail secure operation on 24VDC.
18) Is a mortise lock like the BEST 45H worth it over a cylindrical lock for a commercial storeroom?
A mortise lock goes into a pocket routed into the edge of the door rather than through a round bore, so it carries far more steel and takes abuse a cylindrical lock will not. The 45H case is 0.095 inch cold rolled steel, zinc dichromate plated, with the armored front wrapping both the latch and the deadbolt for lateral strength, and it carries ANSI A156.13 Series 1000 Grade 1 for operation and strength. The catch is the prep: if your doors are bored for a cylindrical lock, you cannot drop a mortise lock in without routing a mortise pocket. On existing cylindrical prep, a Grade 1 cylindrical such as the Schlage PC Series is the practical swap.
19) Does the BEST 45H storeroom mortise lock have a deadbolt?
There is a deadbolt in the case - stainless steel with a 1 inch throw - along with the 3/4 inch stainless latchbolt and a non-handed stainless auxiliary bolt that deadlocks the latch against carding. On a storeroom function the security is coming from the permanently locked outside lever and the auxiliary bolt, so the frame still needs a strike box deep enough for the 1 inch bolt. If you want a thumbturn to throw a deadbolt independently from inside, that is a different function, not this one.
20) What is the simpler mortise lock for a door that never needs to be locked?
A corridor or closet door that only needs latching does not need the keyed cylinder the BEST 45H carries. 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 with field reversible operation and a fire rating. The Hager 3810S is a Grade 1 passage mortise lock with rose on a 2-3/4 inch backset for doors 1-3/4 inch to 2-1/2 inch, with the 3810E offering the same function with an escutcheon instead of the rose. The BEST 45H rose trim comes in 2-3/4 inch flat, 2-3/4 inch concave and 3-1/2 inch flat.
21) Is a Sargent 7925 a substitute for a BEST 45H storeroom mortise lock?
They are both Grade 1 heavy duty mortise locks with rose trim, but the function differs. The Sargent 7925 is a dormitory exit function lock with a single cylinder deadbolt, intended for corridor and dormitory openings where the occupant throws a deadbolt from inside. The BEST 45H covered here is storeroom function with a single cylinder and no occupant-controlled deadbolt in that arrangement, so the two do not swap on the same opening without changing how the door behaves.
22) Can a mortise deadbolt be ordered in place of a storeroom mortise lock?
Only if the door does not need a latch. The Sargent 4874 is a double cylinder mortise deadbolt on a 2-3/4 inch backset, matching the BEST 45H backset, and the Kaba Ilco 185 Series is a non-handed mortise deadbolt. Both are bolt-only bodies with no latch and no lever, so they secure the door but will not hold it closed on their own the way the 45H latchbolt and lever trim do.
23) Is a Schlage L0170 or an Emtek Brisbane mortise lockset a substitute for a keyed storeroom mortise lock?
No. The Schlage L0170 is a Grade 1 heavy duty non-keyed half dummy trim in the L Series for 1-3/4 inch doors, and the Emtek 3019 Brisbane and 3106 Manhattan mortise entrance locksets are dummy function. Dummy trim mounts a lever or knob for appearance and pull only, with no latch and no cylinder. The BEST 45H is a keyed single cylinder storeroom lock, so a dummy will not secure or latch the opening.
24) For a healthcare or education facility standardizing on one mortise lock, how does the BEST 45H compare to the other Grade 1 options?
The BEST 45H is offered in 626AM satin chrome and 630AM satin stainless steel with UltraShield antimicrobial protected coating, which is the finish route for facilities where surface cleanliness drives the spec. Among the Grade 1 peers, the Cal-Royal NM8080 storeroom lockset offers an interchangeable core option and the Accentra 8805FL is a Grade 1 storeroom lock with the Arcadia lever. The TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID technology for 1-3/4 inch doors, which suits a facility standardizing on credentials rather than keys.
25) Can a cylindrical lock be used in place of a mortise storeroom lock?
Only if the door is prepped for one. The Schlage PC10 is a Grade 1 passage cylindrical lock, non-keyed with rose, for 1-3/4 inch doors. A cylindrical lock uses a bored cross hole and edge bore, while the BEST 45H is a mortise lock requiring a routed pocket in the door edge sized for its 8 inch H x 1-1/4 inch W faceplate. The two preps are not interchangeable without modifying the door.
26) Will the BEST 45H hold up on a high traffic door that gets hundreds of cycles a day?
It is built for that. Heavy duty rating, 0.095 inch cold rolled steel case, cover and armored front, and a roller bearing hub mechanism for wear resistance. The lever return spring lives in the trim rather than the case, which is what keeps levers from drooping after a few years of people hanging on them - the most common failure you see on a busy corridor. The latch is oil impregnated and the case is closed with four cover screws, one at each corner, with the armored front and cover interlocking at the latch.
27) Which BEST 45H finish should I pick to match existing hardware, and do any of them change appearance over time?
Two of the fifteen finishes are deliberately not stable. 613, oxidized satin bronze oil rubbed, is designed to wear over time into an antique appearance, so a new 613 lever next to a ten year old one will not match until it ages in. 690, dark bronze coated, continues as a dark brown appearance over time. Everything else is clear coated or plated to stay put: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 618 bright nickel, 619 satin nickel, 622 flat black, 625 bright chrome, 626 satin chrome, 629 bright stainless and 630 satin stainless. For a building standard on commercial openings, 626 and 630 are the usual picks.
28) Is a Sargent 130KB or 130W thumbturn an alternative to a mortise storeroom lock?
No, those are trim pieces rather than lock bodies. The Sargent 130KB is a standard duty mortise thumbturn in the 8200 Series and the 130W is a standard duty mortise thumbturn with a round backplate in the 7800 Series. They provide a turn piece on an existing mortise lock body. The BEST 45H is the heavy duty mortise lock case itself, with rose trim and a keyed single cylinder.
How fast can I get the BEST 45H7D3H626 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 BEST 45H7D3H626 come with a warranty?
Absolutely. The BEST 45H7D3H626 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 BEST 45H7D3H626?
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
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