BEST 45H Series Heavy Duty Mor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,391.00
$861.65
BEST BEST 45H Series (R - Classroom Function) - Escutcheon Trim Heavy Duty Mortise Lock, Single Keyed BES-45H-R-ES

BEST 45H Series Heavy Duty Mortise Lock with Classroom Function and Escutcheon Trim

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Model: 45H7R3J626
$1,391.00
$861.65
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,391.00
$861.65
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BEST 45H Series Heavy Duty Mortise Lock with Classroom Function and Escutcheon Trim

Professional Grade Mortise Lock for Commercial Security Applications

The BEST 45H Series Heavy Duty Mortise Lock delivers commercial-grade security with classroom function operation and escutcheon trim design. This single cylinder mortise lock features a 2-3/4" backset, solid stainless steel construction, and meets ANSI A156.13 Grade 1 Operation and Strength standards. The lock accommodates doors 1-3/4" thick with an 8" H x 1-1/4" W x 1/16" T stainless steel faceplate for professional installation requirements.

Professional Features & Benefits

  • Heavy-Duty Construction: 0.095" cold rolled steel case with zinc dichromate plating provides exceptional durability and corrosion resistance for demanding commercial applications.
  • Enhanced Security Design: Solid one-piece stainless steel anti-friction latch offers 50% more surface contact with strike for superior strength and security performance.
  • Grade 1 Performance: Meets ANSI A156.13 Series 1000 Grade 1 Operation and Strength standards with Grade 2 Security rating for professional applications.
  • Reversible Operation: Field-reversible latch rotates 180 degrees for easy handing changes without opening the case, plus non-handed cylinder retainer for installation flexibility.
  • Precision Engineering: Roller bearing hub mechanism and lever return spring in trim provide smooth operation with enhanced protection against lever droop.
  • Armored Front Protection: Complete latch and deadbolt protection with staked assembly design that self-aligns with door bevel during installation.
  • Antimicrobial Options: Available with UltraShield antimicrobial protected coating (626AM and 630AM finishes) for healthcare and high-cleanliness applications.
  • Comprehensive Specifications: 1" throw stainless steel deadbolt, 3/4" throw latchbolt, and non-handed stainless steel auxiliary bolt for complete security coverage.

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), stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

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

Why Choose BEST Quality?

BEST 45H Series mortise locks deliver professional-grade reliability with 0.095" cold rolled steel construction and solid stainless steel components engineered for demanding commercial applications. The precision roller bearing hub mechanism and enhanced case integrity through four-corner screw design ensure dependable performance where security and durability are essential. Multiple finish options including antimicrobial coatings provide solutions for specialized environments requiring enhanced cleanliness standards.

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:
Classroom
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Classroom
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 45H7R3J626 – Frequently Asked Questions

1) Does the BEST 45H classroom mortise lock come with a core, or do I have to order one separately?
The 45H ships prepped for a small format interchangeable core, less core. You supply the SFIC to match your existing keying system, which is the usual approach on a BEST house key setup. One thing worth knowing for spec work: the 45H carries ANSI A156.13 Grade 1 Operation and Strength with Grade 2 Security as built, and to reach Grade 1 Security with escutcheon trim you have to use a drill resistant core (1CD, 1CDP, 1CDF or 1CDX).
2) What does classroom function actually do on a BEST 45H mortise lock?
Classroom function on the 45H is single cylinder: the key on the outside locks and unlocks the outside lever, and there is no inside locking. Inside lever always retracts the latch for free egress. Teachers cannot lock or unlock the door from inside the room, which is what the function is for in schools where key control matters. If you need the door lockable from inside the room, classroom function is the wrong choice.
3) Is the BEST 45H handed, or can I reverse it on site?
Field reversible. The latch rotates 180 degrees for a handing change without opening the case, and the cylinder retainer is non-handed. So one lock covers left and right hand openings, and you are not stuck if the door swing on the drawing is wrong. The armored front also self-aligns to the door bevel during install, so you are not shimming the face.
4) Will the BEST 45H latch into the mortise strike that is already in my frame?
The 45H uses a 3/4 inch throw stainless latchbolt with a 1 inch throw stainless deadbolt and a non-handed stainless auxiliary bolt. On a standard ANSI mortise frame prep with a 2-3/4 inch backset, that lines up with what is already cut. What decides it is whether your existing strike has the deadbolt pocket depth for a full 1 inch throw, since a latch-only strike will not accept it.
5) What do I need to specify when ordering a BEST 45H classroom mortise lock?
Four things decide the part: finish (fourteen choices, 605 through 690 plus the 626AM and 630AM antimicrobial coatings), lever or knob style (seven, including gull wing, curved with or without return, contour with angle return, round knob and the 3 and 12 solid tube), escutcheon trim style (J wrought, M forged, or N forged with concealed cylinder), and door thickness if it is anything other than 1-3/4 inches, since thick door builds go up to 5 inches. You also supply the SFIC core, since the lock ships less core.
6) What else could I use instead of the BEST 45H for a classroom door?
Mechanical Grade 1 classroom alternatives include the Corbin Russwin ML2003 and the Cal-Royal NM8070, both Grade 1 classroom mortise locksets listed for 1-3/4 inch doors. The practical difference with the BEST is keying: the 45H is prepped for a small format interchangeable core less core, so it drops straight into an SFIC masterkeying program. If you want electronic access control on the classroom instead, the TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID, and the Alarm Lock DL3500CR is a Grade 1 Trilogy classroom mortise lock with 300 user codes.
7) I need a classroom mortise lock that can be recoded without rekeying. What should I look at instead of the BEST 45H?
The BEST 45H is a mechanical keyed lock and is not electronic, so codes are not part of it. If you want keypad or credential control on a classroom opening, the Alarm Lock DL3500CR is a Grade 1 electronic classroom mortise lock with 300 user codes, the Alarm Lock DL2700CR is a Grade 1 electronic classroom mortise lock with a weatherproof design, and the TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID. Note the two Alarm Lock units are listed for doors 1-5/8 to 1-7/8 inch, while the 45H standard configuration is built for 1-3/4 inch doors with thick-door configurations up to 5 inch available.
8) Our district wants a visual indicator showing the classroom door is locked. Does the BEST 45H do that?
The BEST 45H classroom function is a keyed mechanical mortise lock with escutcheon trim and does not include a status indicator. For an indicator on the opening, the Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset for 1-3/4 inch doors, supplied with an ANSI strike and a steel escutcheon measuring 8-1/2 inch H x 2-3/4 inch W x 7/16 inch. The 45H escutcheon-trim face plate is 8 inch H x 1-1/4 inch W x 1/16 inch T, so the two do not share a trim footprint and swapping between them means re-evaluating the existing trim coverage.
9) What mortise lock should I use instead of the BEST 45H on a behavioral health or psychiatric unit?
The 45H escutcheon trim is offered with lever styles including gull wing, curved with and without return, contour with angle return, and a round knob, none of which are anti-ligature. For those units, the TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in stainless steel with passage function, and the MRX-A-01 is a ligature resistant arch trim mortise lockset in satin stainless steel, also passage, both for 1-3/4 inch doors. The Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset described as ligature resistant and ADA compliant in satin stainless steel. All three are passage function rather than the keyed classroom operation of the 45H.
10) We need the classroom door tied into access control. What replaces the BEST 45H for that?
The BEST 45H is a mechanical, non-electronic lock. For an access-controlled mortise opening, the Schlage L9092EU with 03A trim is a heavy duty electrified mortise lock with keyed outside lever and request-to-exit, running 12/24VDC on 1-3/4 inch doors, and the Command Access ML190 is a heavy duty motorized mortise lock with field selectable fail safe or fail secure operation on 24VDC. For wireless credential control, the Schlage LEMD-GRW is a Grade 1 ENGAGE series wireless mortise lock with a 125kHz proximity reader and a 3 hour fire rating. All of these require power or a network path that the 45H does not.
11) Is there an antimicrobial finish option for a hospital or clinic corridor?
Yes, two of them. The 45H is available in 626AM (satin chrome) and 630AM (satin stainless) with the BEST UltraShield antimicrobial protected coating, which inhibits bacterial and microbial growth on the hardware surface. BEST recommends it for healthcare, elderly care, education, transportation, food service and hospitality. Beyond those, the standard palette covers fourteen finishes including 605 bright brass, 613 oil rubbed bronze, 622 matte black, 626, 630 and 690 dark bronze.
12) Will the escutcheon trim cover up the old cutouts from the lock I am replacing?
The 45H escutcheon plate gives you an 8 inch high by 1-1/4 inch wide by 1/16 inch thick faceplate on the lock edge, and the escutcheon trim itself is a long plate on the door face rather than a small rose. That covers more of a previously drilled face than rose trim will. If your old lock was mortise with standard ANSI prep and a 2-3/4 inch backset, the swap is straightforward; if it was a cylindrical lockset with a 2-1/8 inch bore, the door has to be re-prepped for a mortise pocket.
13) Can I get the BEST 45H with a keypad or card reader?
No. The 45H is a mechanical key-operated mortise lock, not an electronic one. For a classroom opening that needs credentials, look at the TownSteel FME-2000 or FME-4000, both Grade 1 heavy duty classroom mortise locksets with RFID for 1-3/4 inch doors, or the Alarm Lock DL2700CR Trilogy T2 classroom mortise lock. If you need the lock tied to an access control panel, the Schlage L9092EU with request-to-exit runs on 12/24VDC.
14) Is the BEST 45H durable enough for a high traffic building entrance or a school corridor?
It is built for that duty. Heavy duty commercial rating, a 0.095 inch cold rolled steel case with zinc dichromate plating for corrosion resistance, and a solid one piece stainless anti-friction latch that BEST states gives 50 percent more surface contact with the strike. The roller bearing hub and the lever return spring in the trim are what keep levers from drooping after years of use, which is the usual failure you see on abused corridor doors.
15) Does the BEST 45H meet accessibility requirements for lever operation?
BEST states the design and operation of the 45H mortise lock meets the intent of ANSI A117.1 section 404.2.6, which is the door hardware operation provision. Lever styles are the way to satisfy it in practice, and six of the seven trim options are levers, including curved with and without return, contour with angle return, gull wing, and the 3 and 12 solid tube. The 4 round knob is the one choice that will not meet a lever requirement.
16) Classroom function is wrong for this door. What other functions are available in a Grade 1 mortise lock?
If the opening needs a different function than the classroom operation the BEST 45H provides, the Cal-Royal NM series covers the common ones on 1-3/4 inch doors: NM8050 for office/entrance, NM8080 for storeroom with an interchangeable core option, and NM8440 for privacy with a deadbolt, all Grade 1 heavy duty. The Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 series, and the Sargent 7925 is a Grade 1 heavy duty corridor/dormitory mortise lock with rose trim and a single cylinder deadbolt. For a non-keyed opening, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation.
17) Is the Hager 3850E a substitute for the BEST 45H classroom lock?
They are not interchangeable by function. The Hager 3850E is a 3800 series Grade 1 office mortise lock with lever and escutcheon that is non-keyed, on a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inch. The BEST 45H is keyed, single cylinder, with classroom function, also on a 2-3/4 inch backset. The backset and the escutcheon trim style line up, but an office non-keyed lock will not give you key control of the outside lever the way the classroom function does.
18) Do I need a full 45H mortise lockset if the door only needs a deadbolt or a thumbturn?
No. The BEST 45H is a complete keyed classroom mortise lockset with a 1 inch throw deadbolt, 3/4 inch throw latchbolt and auxiliary bolt. If the opening only needs a deadbolt, the Sargent 4874 is a double cylinder mortise deadbolt on a 2-3/4 inch backset, matching the 45H backset, and the Kaba Ilco 185 series is a non-handed mortise deadbolt. For inside thumbturn only, the Sargent 130KB is a standard mortise thumbturn from the 8200 series and the 130W is a mortise thumbturn with a round backplate from the 7800 series.
19) What is the difference between the BEST 45H with escutcheon trim and the Emtek mortise entrance sets?
Function, not just styling. The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan mortise entrance locksets are dummy function, meaning they are non-operating trim. The BEST 45H is a keyed single cylinder classroom lock with a working latchbolt and deadbolt, offered with wrought escutcheon, forged escutcheon and forged concealed-cylinder escutcheon trim. If you are matching an inactive leaf to an active 45H opening, a dummy set is the correct part; if the leaf latches, it is not.
20) Is the Schlage PM010 an equivalent mortise lock to the BEST 45H?
Only in form factor. The Schlage PM010 is a Grade 1 passage latch mortise lock, non-keyed, for 1-3/4 inch doors, so the lever always retracts the latch and there is no key control. The BEST 45H is keyed, single cylinder, classroom function. Both are mortise-prep locks for 1-3/4 inch doors, but a passage latch cannot secure a classroom. Schlage also lists the PC10 as a Grade 1 passage cylindrical lock with rose, which is a cylindrical prep and not a mortise pocket at all.
21) For a healthcare corridor, is the antimicrobial BEST 45H the right pick or should I look at an electronic lock?
The BEST 45H is offered in 626AM satin chrome and 630AM satin stainless with UltraShield antimicrobial protected coating, which BEST recommends for hospital, elderly care, education, transportation, food service and hospitality applications. That is a mechanical keyed classroom lock. If the opening needs credential access instead, the Dormakaba Saffire LX-I-M002 is an electronic RFID mortise lockset with BLE mobile access at BHMA Grade 2, and the Accentra NTM623-NR is a Grade 1 nexTouch mortise lock with a capacitive touchscreen keypad, no deadbolt, with cylinder override. Neither of those is listed with an antimicrobial coating option.
22) I need to standardize a whole building on one lock. Can the 45H cover other functions besides classroom?
The 45H body covers a range of functions across the series; this one is set up as classroom with a single cylinder. Standardizing works well here because every function shares the same 2-3/4 inch backset, the same 8 x 1-1/4 x 1/16 inch faceplate, and the same door prep, so storerooms, offices and classrooms all take the same pocket. Order the other openings in the same finish and lever style and the building reads as one set.
How fast can I get the BEST 45H7R3J626 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 45H7R3J626 come with a warranty?
Absolutely. The BEST 45H7R3J626 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 45H7R3J626?
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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