BEST 45H Series Heavy Duty Mor...
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$2,104.00
$1,118.47
BEST 45H Series (TD - Dormitory Function) - Escutcheon Trim Heavy Duty Mortise Lock with Indicator, SFIC Housing Less Core

BEST 45H Series Heavy Duty Mortise Lock with Visual Thumbturn Indicator - Dormitory Function

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Model: 45H7TD3M625VIT
$2,104.00
$1,118.47
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,104.00
$1,118.47
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BEST 45H Series Heavy Duty Mortise Lock with Visual Thumbturn Indicator - Dormitory Function

Professional Grade Mortise Lock with Visual Status Indication

The BEST 45H Series Heavy Duty Mortise Lock delivers commercial-grade security with dormitory function and visual thumbturn indicator for institutional applications. This ANSI A156.13 Grade 1 mortise lock features a 2-3/4" backset, solid stainless steel anti-friction latch with 1" deadbolt throw, and 0.095" cold rolled steel case construction for exceptional durability. The visual indicator displays padlock icons with red coloring for locked status and clear indication for unlocked states.

Professional Features & Benefits

  • Heavy-Duty Case Construction: 0.095" cold rolled steel case measuring 5-7/8" H x 7/8" D x 4-1/16" W with zinc dichromate plating for superior corrosion protection and strength.
  • Enhanced Latch Design: Solid one-piece stainless steel anti-friction latch provides 50% more surface contact with strike for superior strength and security with oil-impregnated operation.
  • Visual Status Indication: Thumbturn indicator shows padlock icon open for unlocked and padlock icon closed with red paint for locked status providing clear operational feedback.
  • 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.
  • Armored Front Protection: Completely surrounds latch and deadbolt providing increased lateral strength with staked assembly design for self-alignment during installation.
  • Roller Bearing Mechanism: Hub mechanism provides smooth, wear-resistant operation with lever return spring located in trim for enhanced protection against lever droop.
  • Grade 1 Performance: ANSI A156.13 Series 1000 Grade 1 Operation and Strength, Grade 2 Security rating with ANSI A117.1 section 404.2.6 compliance for accessibility.
  • SFIC Compatibility: Small Format Interchangeable Core housing less core with solid machined cylinder rings and security screw preventing unauthorized cylinder removal.

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 the 8" H x 1-1/4" W faceplate.
  3. Prepare door mortise pocket and frame strike preparation according to manufacturer specifications for 2-3/4" backset configuration.
  4. Install mortise case into door pocket and secure armored front assembly, allowing self-alignment with door bevel during installation using the four corner case cover screws.
  5. Mount escutcheon trim with visual thumbturn indicator and configure four position hub toggle for desired dormitory function operation.
  6. Test lock operation including latch and deadbolt function, visual indicator display, and lever return mechanism to verify proper alignment and smooth operation. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Dormitory and Student Housing Facilities
  • Educational Institution Residential Areas
  • Healthcare Patient Room Access
  • Hotel and Hospitality Guest Rooms
  • Multi-Tenant Residential Properties
  • Assisted Living and Senior Care Facilities
  • Commercial Building Private Offices

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 enhanced case integrity through four corner screws plus interlocking armored front design ensures long-term durability where dependable security performance is essential. ANSI Grade 1 certification and precision-engineered components provide the quality assurance required for institutional and commercial installations.

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
Product Attribute:
Indicator Locks
Electronic:
No
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
Product Function:
Dormitory

BEST 45H7TD3M625VIT – Frequently Asked Questions

1) Will the BEST 45H mortise lock latch into the strike prep I already have?
The 45H runs a 2-3/4 inch backset with a 3/4 inch stainless latchbolt throw and a separate 1 inch deadbolt throw, so it wants a standard mortise strike prepped for both. The 8 x 1-1/4 x 1/16 inch stainless faceplate is what sits in the edge of the door. If your existing pocket was cut for a 2-3/4 inch backset mortise lock with an armored front of those face dimensions, the case drops in; a 2-3/8 inch backset cylindrical prep is not convertible.
2) What does dormitory function actually do on a BEST 45H mortise lock?
Dormitory function on the 45H means the deadbolt is thrown by the inside thumbturn and retracted by key outside or by turning the inside lever, so the occupant controls privacy from inside the room while staff keep key access. The thumbturn carries a visual indicator: padlock icon open when unlocked, padlock icon closed and painted red when locked. That is why it lands in student housing, patient rooms, guest rooms and senior care, where someone in the corridor needs to read the door's state without touching the lever.
3) Do I have to specify handing when ordering a BEST 45H mortise lock?
Handing is a required selection: left hand, right hand, left hand reverse or right hand reverse. That said, the case itself is non-handed, and the latch is reversible by rotating it 180 degrees without opening the case, so a field handing change is a screwdriver job rather than a return. A four position hub toggle covers configuration on top of that.
4) Does the BEST 45H mortise lock come with a cylinder, or do I need to order cores separately?
It ships as SFIC prep less core. The housing takes a BEST small format interchangeable core, but no core is in the box, so a locksmith or facility keying your own system orders cores and keys separately and keys them into the existing masterkey system. Solid machined cylinder rings and a security screw keep the core from being backed out. It is a single cylinder keyed function, so one key side.
5) Is the BEST 45H a Grade 1 lock, and what do I need to do to get Grade 1 security?
Under ANSI A156.13, Series 1000, the 45H is Grade 1 for operation and strength but Grade 2 for security as standard. To reach Grade 1 security you have to specify a drill resistant core (1CD, 1CDP, 1CDF or 1CDX) with escutcheon trim, or a 1EK7K4 high security cylinder with sectional trim. If your spec says Grade 1 security across the board, put that core call-out on the order. The design also meets the intent of ANSI A117.1 section 404.2.6 for accessibility.
6) What is the closest equivalent to the BEST 45H dormitory mortise lock from another manufacturer?
The Sargent 7925 is the nearest peer. It is a Grade 1 heavy duty mortise lock in the 7900 Series with a corridor/dormitory function, rose trim, and a single cylinder deadbolt. The BEST 45H is likewise a Grade 1 heavy duty mortise lock with dormitory function, a 2-3/4 inch backset, and a visual thumbturn indicator, and it is offered in H Rose, R Rose, J wrought escutcheon, and M forged escutcheon trim. If you want the occupancy status readable from the corridor side, the indicator is the deciding difference; if you only need the dormitory function itself, the 7925 covers it.
7) The door is 1-3/4 inch but the existing lock has a 2-1/2 inch backset. Will the BEST 45H drop in?
No. The BEST 45H uses a 2-3/4 inch backset, so a pocket cut for a 2-1/2 inch backset will not take it without reprep. The Baldwin 6301 entry/apartment mortise lock body is a 2-1/2 inch backset unit for doors 1-3/4 inch and over, offered knob by knob or as the 6301LS lever by lever, and the Baldwin 6310 entry/storeroom body is a 2-1/2 inch backset for doors 1-3/8 inch and over. If the existing prep is staying, those match the backset; if the door is being reprepped, the 45H's 2-3/4 inch backset is the standard commercial dimension.
8) For a behavioral health or patient room, is the BEST 45H indicator lock the right choice or do I need anti-ligature trim?
If the opening requires ligature resistant trim, specify a lock built for it. The TownSteel MRX-L-01 is a Grade 1 heavy duty stainless steel anti-ligature lever mortise lockset in passage function for 1-3/4 inch doors, the MRX-A-01 is the same passage function with satin stainless ligature resistant arch trim, and 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. The BEST 45H is a heavy duty keyed dormitory lock with lever or knob trim and a visual thumbturn indicator, which suits patient room access where standard lever trim is acceptable; it is offered with 626AM satin chrome and 630AM satin stainless antimicrobial finishes.
9) Which mortise lock should I use for a dorm room door, a dormitory function or a classroom function?
Dormitory function is the one for sleeping rooms: the occupant throws a deadbolt from inside for privacy and the indicator shows the door's state, which is what a residence hall or patient room needs. Classroom function is a different job, keyed control of the outside lever with no occupant deadbolt, and ZenSupply carries that in the Cal-Royal NM8070 and the Corbin Russwin ML2003, both Grade 1 for 1-3/4 inch doors. If the deciding factor is corridor egress on a dorm door, the Sargent 7925 is a Grade 1 heavy duty dormitory function mortise lock with rose trim and a single cylinder deadbolt.
10) What finish and lever options do I have to pick on a BEST 45H mortise lock to match the rest of my building?
Fourteen finishes are available, from 605 bright brass and 606 satin brass through 612 satin bronze, 619 satin nickel, 622 matte black, 626 satin chrome, 630 satin stainless and 690 statuary dark bronze, plus 626AM and 630AM with the UltraShield antimicrobial coating. Seven lever styles cover 3 solid tube with return, 12 solid tube no return, 14 curved with return, 15 contour with angle return, 16 curved without return, 17 gull wing and 4 round knob. Trim is H rose, R rose, J wrought escutcheon or M forged escutcheon. Note 613 oxidized satin bronze is meant to wear to an antique look, so it will not stay uniform against newer doors.
11) Is there an antimicrobial option on the BEST 45H for a healthcare or school corridor?
Two: 626AM, satin chrome plated, and 630AM, satin stainless steel, both with the UltraShield coating that inhibits growth of bacteria and other microbes on the hardware surface. BEST points these at hospital and elderly care, education, transportation, food service and hospitality, anywhere touch cleanliness is the priority. If you are standardizing a facility, 630AM sits closest in appearance to the plain 630 satin stainless already on most commercial openings.
12) How big is the mortise pocket I need to cut for a BEST 45H lock case?
The case is 0.095 inch cold rolled steel measuring 5-7/8 inches H x 7/8 inches D x 4-1/16 inches W, zinc dichromate plated. The pocket has to take those case dimensions with the 8 x 1-1/4 inch faceplate landing on the door edge above and below it. The lock face self-adjusts to the correct bevel during installation, so you are not shimming a beveled edge, and the armored front is staked for self-alignment.
13) I need a mortise lock with a visual occupancy indicator. What are my options besides the BEST 45H?
The 45H's indicator is on the thumbturn, reading a red closed padlock for locked and an open padlock for unlocked, which suits dormitory and patient room use. For an indicator aimed at classroom security instead, ZenSupply carries the Marks USA LA318GJ, a Grade 1 classroom security indicator mortise lockset for 1-3/4 inch doors with an ANSI strike and a steel escutcheon measuring 8-1/2 x 2-3/4 x 7/16 inches. Different job: the Marks indicates whether a teacher has locked down the room, the BEST indicates whether a resident has secured their own door.
14) Does the BEST 45H mortise lock need power or wiring run to the door?
No power. The 45H is a mechanical lock, non-electronic, keyed with an SFIC core, so there is no wiring, no transfer hinge and no battery to change out across a hundred doors. If the project actually calls for access control on a mortise prep, ZenSupply carries electrified and standalone options such as the Command Access ML190 motorized mortise lock with field selectable EL/EU operation at 24VDC, and the Schlage L9092EU with keyed outside lever and request to exit at 12/24VDC for 1-3/4 inch doors.
15) I have older BEST mortise locks on my doors. Can I standardize new openings on the 45H and keep one key?
Yes on keying, as long as your existing system is BEST small format interchangeable core. The 45H comes with SFIC prep less core, so you supply cores cut to your existing masterkey and the new doors join the system with no rekeying of the old ones. Where it gets decided is trim and finish: pick the same trim family (H or R rose, J wrought or M forged escutcheon) and the same finish number as what is already hung, since escutcheon and rose openings are prepped differently.
16) What is the difference between the BEST 45H and the 47H series?
Security rating. The 45H is ANSI A156.13, Series 1000, Grade 1 operation and strength with Grade 2 security unless you add a drill resistant core or high security cylinder. The 47H is Grade 1 for operation, strength and security as built. If your specification demands Grade 1 security with no core substitution written in, the 47H is the cleaner answer; if you are already buying drill resistant cores for the building, the 45H gets you there.
17) Is there a simpler mortise lock if I do not need the indicator or the deadbolt on the door?
If nobody needs to secure the room from inside, skip the dormitory function entirely. For a plain latching mortise opening ZenSupply carries the Falcon MA101, a Grade 1 heavy duty passage mortise lock that is field reversible and fire rated, and the Schlage PM010 Grade 1 passage latch mortise lock for 1-3/4 inch doors. For keyed control without an occupant thumbturn, the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset for 1-3/4 inch doors with an interchangeable core option, which keeps you on one keyway.
18) What is a simpler mortise lock for dorm rooms that do not need the indicator or a keyed cylinder?
For an unkeyed opening, the Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon, non-keyed, with a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inches thick, and the Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset for doors 1-3/4 to 2 inches. Both share the 45H's 2-3/4 inch backset, so the door prep is the same dimension. The BEST 45H is keyed with a single cylinder function and is prepped for a small format interchangeable core less core, which is what you want only if the room ties into a keyed master system.
19) Should I use a credential-based electronic mortise lock instead of the BEST 45H for student housing?
That depends on whether you are issuing keys or credentials. The BEST 45H is mechanical, not electronic, keyed single cylinder with a small format interchangeable core prep less core. If you are moving the building to credentials, the Dormakaba LX-I-M002 Saffire is an electronic RFID mortise lockset with BLE mobile access at BHMA Grade 2, and the Schlage LE Series 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 for 1-3/4 inch doors. Both change how the room is accessed; the 45H keeps the opening on a mechanical key system with the status visible at the door.
20) What do I order for the hall and closet doors if I am using the BEST 45H on the room doors?
For non-locking openings, the Falcon MA101 is a Grade 1 heavy-duty mortise passage lock in the MA Series with field reversible operation and a fire rating, the Schlage PM010 is a Grade 1 passage latch mortise lock, non-keyed, for 1-3/4 inch doors, and the Hager 3810E and 3810S are Grade 1 passage mortise locks with a 2-3/4 inch backset, the 3810E with escutcheon and the 3810S with rose, for doors 1-3/4 to 2-1/2 inches. The 45H's field reversibility is comparable to the MA101's: its latch rotates 180 degrees to change handing without opening the case, though handing is still specified at order in Left Hand, Right Hand, Left Hand Reverse or Right Hand Reverse.
21) We need the room to lock and unlock from access control. Does the BEST 45H do that?
No, the 45H is mechanical, not electronic. For an electrically controlled mortise opening, the Command Access ML190 Series is a heavy-duty motorized mortise lock with field selectable EL/EU operation on 24VDC in storeroom function, and the Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit, 12/24VDC, corridor function for 1-3/4 inch doors. Those tie the opening to the access control panel; the 45H keeps status indication at the door itself through the visual thumbturn.
22) Will the lever droop on a BEST 45H after a few years of dorm traffic?
BEST puts the lever return spring in the trim rather than the case, specifically to protect against lever droop, and the hub runs on a roller bearing mechanism for wear resistance. The latch is a solid one piece stainless steel anti-friction design that BEST says gives 50 percent more surface contact with the strike, and it is oil impregnated. It is rated Heavy Duty and commercial, which is the class you want on a residence hall door cycling all day.
23) Can I add a deadbolt or a separate thumbturn to an existing door instead of replacing the whole mortise lock with the 45H?
For deadbolt-only openings, the Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset in the 4870 Series, and the Kaba Ilco 185 Series is a no-handing mortise deadbolt sold in a single pack. Those are deadbolt bodies without a latch or lever. The BEST 45H is a full mortise lockset with dormitory function, a 2-3/4 inch backset and single cylinder keying, so it replaces latch, deadbolt, and trim in one pocket rather than adding a second lock to the door.
24) Is the Emtek Brisbane or Memphis mortise entrance set an alternative to the BEST 45H?
They serve a different purpose. The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan mortise entrance locksets are all dummy function, meaning they mount trim without an operating latch. The BEST 45H is a keyed single cylinder dormitory lock, commercial rated, with a 2-3/4 inch backset. If you need matching inactive trim on a paired opening, a dummy set is correct; if the leaf latches and locks, it is not.
How fast can I get the BEST 45H7TD3M625VIT 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 45H7TD3M625VIT come with a warranty?
Absolutely. The BEST 45H7TD3M625VIT 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 45H7TD3M625VIT?
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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