BEST 45H Series Heavy Duty Mor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,677.00
$931.67
BEST 45H Series ( LT - Private Function) - Escutcheon Trim Heavy Duty Mortise Lock with Visual Keyed Indicator, No Housing and No Core

BEST 45H Series Heavy Duty Mortise Lock with Visual Thumbturn Indicator - Privacy Function Escutcheon Trim

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Model: 45H0LT3J626VIT
$1,677.00
$931.67
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,677.00
$931.67
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BEST 45H Series Heavy Duty Mortise Lock with Visual Thumbturn Indicator - Privacy Function Escutcheon Trim

Professional Privacy Function Mortise Lock Solution

The BEST 45H Series Heavy Duty Mortise Lock delivers commercial-grade security with privacy function capability and visual thumbturn indicator. Engineered with solid one-piece stainless steel anti-friction latch providing 50% more surface contact with strike, this mortise lock features 2-3/4" backset and 8" H x 1-1/4" W x 1/16" T stainless steel faceplate. ANSI A156.13 Series 1000 Grade 1 Operation and Strength certified with 0.095" cold rolled steel case construction for demanding commercial applications.

Professional Features & Benefits

  • Enhanced Latch Design: Solid one-piece stainless steel anti-friction latch provides 50% more surface contact with strike for superior strength and security with precision-engineered curve for enhanced cycle life.
  • Heavy-Duty Construction: 0.095" cold rolled steel case, cover, and armored front manufactured for exceptional strength and durability in commercial applications.
  • Visual Indicator System: Padlock icon shows open for unlocked and closed with red paint for locked, providing clear indication of privacy status.
  • Reversible Operation: Non-handed design with reversible latch that rotates 180 degrees for easy handing change without opening case, plus non-handed cylinder retainer.
  • Armored Front Protection: Completely surrounds latch and deadbolt providing increased lateral strength with staked assembly design for self-alignment during installation.
  • Roller Bearing Hub Mechanism: Provides smooth, wear-resistant operation with four position hub toggle design for flexible configuration options.
  • Enhanced Case Integrity: Four case cover screws at each corner plus interlocking armored front and cover design at the latch for superior structural strength.
  • Self-Aligning Installation: Trim mechanism and faceplate automatically adjust to proper bevel during installation for fast, accurate mounting.

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 and faceplate positioning.
  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, ensuring armored front self-aligns with door bevel during installation.
  5. Mount escutcheon trim and configure four position hub toggle to determine locked/unlocked operation per privacy function requirements.
  6. Test lock operation including latch retraction, deadbolt extension, visual indicator function, and lever return mechanism to verify proper alignment and smooth operation throughout full range of motion.

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 solid stainless steel components engineered for demanding commercial applications. ANSI A156.13 Series 1000 Grade 1 certification ensures consistent performance and durability. The precision-engineered anti-friction latch design and roller bearing hub mechanism provide enhanced cycle life where dependable privacy function operation is essential.

Product Specs

Series:
45H
Standard Cylinder:
Less Cylinder
Duty Level:
Heavy Duty
Keyed Function:
Non-Keyed
Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Locks
Subcategory:
Mortise
Keyed:
No
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:
Privacy

BEST 45H0LT3J626VIT – Frequently Asked Questions

1) Will the BEST 45H privacy mortise lock fit a door thicker than 1-3/4 inches?
Standard 45H lock configuration is built for 1-3/4 inch doors. For anything thicker, BEST offers a thick door configuration covering doors up to 5 inches, but the thickness has to be specified at time of order - it is not field adjustable later. If you are doing a run of solid core or clad doors over 1-3/4, measure each opening before you place the order.
2) Do I have to specify handing on a BEST 45H mortise lock, or is it reversible?
You pick a hand when you order (left hand, right hand, left hand reverse, right hand reverse), but the lock itself is non-handed in practice. The latch is reversible and rotates 180 degrees to change handing without opening the case, and the cylinder retainer is non-handed too. So if a door gets rehung or you ordered the wrong hand, you can flip it on the job instead of sending it back.
3) Does the BEST 45H privacy lock come with a cylinder or core?
No. It ships less cylinder, so no housing and no core in the box. That is normal for BEST, since most buyers are keying into an existing small format interchangeable core system and want to add their own cores. On the privacy (LT) function specifically the lock is non-keyed, so for a standard restroom or exam room opening you may not need a core at all.
4) How does the visual indicator on the BEST 45H work - can staff tell at a glance if a restroom is occupied?
A padlock icon on the trim shows the status: open padlock for unlocked, closed padlock with red paint for locked. The thumbturn on the inside drives it. That gives anyone in the corridor a read on occupancy without trying the lever, which is why these go on single occupancy restrooms, exam rooms, lactation rooms and quiet rooms.
5) Will the BEST 45H latch into the strike already in my frame?
The latchbolt is solid stainless with a 3/4 inch throw and the deadbolt throws a full 1 inch, both standard for an ANSI mortise prep, so an existing ANSI strike with the right deadbolt cutout will take it. Check that your frame strike has the deadbolt pocket - passage and office prepped frames sometimes only have the latch opening, and the privacy function needs room for that 1 inch bolt.
6) Is the BEST 45H Grade 1, and does it meet accessibility requirements?
The 45H carries ANSI A156.13 Series 1000, Grade 1 Operation and Strength, with Grade 2 Security. Design and operation meet the intent of ANSI A117.1 section 404.2.6. For Grade 1 Security with escutcheon trim you have to use a drill resistant core (1CD, 1CDP, 1CDF or 1CDX) - that is not relevant on this non-keyed privacy configuration, so if a spec calls for Grade 1 Security on the opening, the 47H Series is the one that carries Grade 1 Operational, Strength and Security outright.
7) I need an indicator lock for a classroom, not a restroom. Is the 45H privacy the right one?
No. The privacy (LT) function is non-keyed and locks from the inside by thumbturn - that is a restroom or single occupancy room application, not a lockdown function. For a classroom you want a security indicator lockset that locks the corridor lever from inside with a key. The Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset for 1-3/4 inch doors with an ANSI strike and steel escutcheon measuring 8-1/2 x 2-3/4 x 7/16 inches. BEST also builds indicator functions in the 45H family beyond privacy, so a keyed classroom security version can be specified in the same series if you want to keep the building on one platform.
8) What is the closest alternative to a BEST 45H privacy mortise lock from another manufacturer?
The BEST 45H privacy mortise lock is a non-keyed, heavy duty mortise privacy function lock on a 2-3/4 inch backset. The closest peers by function are the Hager 3840S 3800 Series Grade 1 privacy mortise lock, which also uses a 2-3/4 inch backset and fits doors 1-3/4 to 2 inches thick, and the Cal-Royal NM8440 heavy duty Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors. The distinguishing feature of the 45H build is the visual thumbturn indicator that shows a padlock icon open for unlocked and closed in red for locked.
9) Does the BEST 45H privacy lock work for an exterior or keyed entry door, or do I need a different lock?
The BEST 45H in privacy function is non-keyed and ships less cylinder, so it is not an entry or keyed-access lock. For keyed mortise openings, the Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series, the Cal-Royal NM8080 is a heavy duty Grade 1 storeroom mortise lockset with an interchangeable core option for 1-3/4 inch doors, and the Cal-Royal NM8050 is a Grade 1 office/entrance mortise lockset with auxiliary deadlatch.
10) My doors are 2-1/2 inches thick. Which mortise privacy or non-keyed lock covers that?
The BEST 45H is built standard for 1-3/4 inch doors with a thick door configuration available up to 5 inches when the thickness is specified at time of order, which makes it the wider-range option. Among peers, the Hager 3810E and 3810S passage mortise locks and the Hager 3850E office mortise lock list doors from 1-3/4 to 2-1/2 inches, while the Hager 3840S privacy version stops at 2 inches. Cal-Royal NM8440 privacy is listed for 1-3/4 inch doors.
11) For a behavioral health room, is the BEST 45H indicator lock appropriate or is there a better option?
The BEST 45H uses lever and knob trim with a projecting thumbturn indicator, which is not a ligature resistant design. For patient rooms requiring anti-ligature hardware, the TownSteel MRX-A-01 is a Grade 1 heavy duty passage function ligature resistant arch trim mortise lockset in satin stainless steel for 1-3/4 inch doors, the MRX-L-01 is the Grade 1 heavy duty anti-ligature lever version, 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.
12) What do I have to pick when ordering a BEST 45H besides the function?
Four decisions. Handing (left, right, left reverse, right reverse). Lever or knob style - 12 solid tube no return, 14 curved with return, 15 contour with angle return, 16 curved without return, 17 gull wing, 3 solid tube with return, or 4 round knob. Trim style - H rose, R rose, or J wrought escutcheon. And finish. If the door is over 1-3/4 inches you also call out the thickness.
13) Can I get a BEST 45H in an antimicrobial finish for a hospital?
Yes, two of them: 626AM satin chrome and 630AM satin stainless, both with BEST UltraShield coating that inhibits bacteria and microbe growth on the hardware surface. BEST calls it out for hospital and elderly care, education, transportation, food service and hospitality - anywhere cleanliness is a priority. On a privacy restroom lock in a healthcare corridor it is the obvious choice.
14) What else could I use if I need a Grade 1 privacy mortise lock and don't need the visual indicator?
Two straightforward alternatives we carry. The Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors. The Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset, rated for 1-3/4 to 2 inch doors, so it has a little more thickness range than a standard configuration BEST without going to a special order. The 45H earns its place when you want the padlock indicator on the trim; if nobody needs to read status from the corridor, either of those covers the opening.
15) Is the BEST 45H an electronic or access control lock?
No, it is fully mechanical - no power, no wiring, no credential reader. If the opening needs access control, we carry mortise options that do: the Schlage CO-100 standalone electronic mortise lock in privacy function with keypad reader, Grade 1 for 1-3/4 inch doors, or the Dormakaba E-Plex 2066 pushbutton keyless mortise lock. For a wired electrified mortise body, the Command Access ML190 Series runs 24VDC with field selectable fail safe or fail secure operation.
16) Does the BEST 45H come with a strike, and do I need anything else to finish the install?
Trim is included on this configuration - escutcheon or rose per what you order - along with mounting screws. The lock ships less cylinder and less core, so add those if your function requires them. Strike packages are specified separately, so confirm your frame prep and order the matching strike with the lock rather than assuming the existing one takes a 1 inch deadbolt.
17) The opening does not need to lock at all. Is there a simpler mortise lock than the BEST 45H?
Yes. The BEST 45H privacy build includes a thumbturn, indicator and deadbolt mechanism that a hall or closet door does not need. For latch-only openings, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation and a fire rating, the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, and the Hager 3810E is a Grade 1 passage mortise lock with escutcheon trim on a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inches thick.
18) Can I use an electronic privacy mortise lock instead of the BEST 45H indicator lock?
Yes, if the opening supports power and credentials. The BEST 45H is a mechanical, non-electronic mortise lock. The Schlage CO-100-MS-40-KP is a standalone electronic mortise lock in privacy function with a keypad reader, Grade 1 heavy duty for 1-3/4 inch doors. The Schlage Electronics LEBMB-ADD is a mobile-enabled Grade 2 mortise lock with push button and LED covering privacy, office and apartment modes, 3 hour fire rated for 1-3/4 inch doors. The mechanical 45H gives status through a painted thumbturn indicator rather than an electronic display.
19) What looks like a substitute for the BEST 45H mortise lock but will not actually replace it?
Several mortise-family parts are not complete lock replacements. The Sargent 130KB and 130W are mortise thumbturns only, standard duty trim pieces rather than a lock body with latch and lever. The Schlage L0170 is half dummy trim in Grade 1 non-keyed L Series with no latching function, and the Emtek 3102 Memphis and 3104 Hamilton mortise entrance locksets are dummy function. The BEST 45H is a full heavy duty mortise lock body with escutcheon or rose trim and a 2-3/4 inch backset.
20) I need the same heavy duty mortise body but in an office or dormitory function instead of privacy. What are the options?
The BEST 45H is offered in privacy function with the indicator thumbturn. For other functions on a comparable heavy duty mortise opening, the Sargent 7925 is a Grade 1 heavy duty dormitory exit function mortise lock with rose trim and single cylinder deadbolt in the 7900 Series, the Hager 3850E is an office function mortise lock with lever and escutcheon, non-keyed, on a 2-3/4 inch backset, and the Corbin Russwin ML2003 is a Grade 1 classroom mortise lockset for 1-3/4 inch doors.
21) Is a mortise deadbolt an alternative to the BEST 45H privacy lock for a restroom?
Not on its own. The BEST 45H privacy build combines a 3/4 inch throw latchbolt with a 1 inch throw deadbolt and lever trim in one case, so the door latches and locks from a single body. A mortise deadbolt such as the Sargent 4874 double cylinder mortise deadbolt on a 2-3/4 inch backset, or the Kaba Ilco 185 Series non-handed deadbolt mortise lock, provides locking only and would need separate latching or pull hardware to complete the opening.
22) Will a BEST 45H match the finishes on the rest of my building's door hardware?
Fourteen finishes are offered, so matching an existing standard is usually straightforward: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 oil rubbed satin bronze, 618 bright nickel, 619 satin nickel, 622 matte black, 625 bright chrome, 626 satin chrome, 626AM, 630 satin stainless, 630AM, and 690 dark bronze. Two live finishes to know about: 613 is meant to wear to an antique look over time, and 690 stays a dark brown. If you are standardizing a fleet of openings, 626 and 630 are the usual commercial picks.
23) How is the BEST 45H built compared to a lighter duty privacy lock?
Case, cover and armored front are all 0.095 inch cold rolled steel, zinc dichromate plated for corrosion resistance, with four case cover screws at the corners and an interlocking armored front and cover at the latch. The armored front wraps both the latch and deadbolt for lateral strength. The latch is one piece stainless, oil impregnated, with a curve that gives about 50 percent more contact with the strike. Hub runs on roller bearings with a four position toggle. That is a heavy duty commercial build, not a residential mortise body.
How fast can I get the BEST 45H0LT3J626VIT 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 45H0LT3J626VIT come with a warranty?
Absolutely. The BEST 45H0LT3J626VIT 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 45H0LT3J626VIT?
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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