BEST 45H Series Heavy Duty Mor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,267.00
$731.47
BEST BEST 45H Series (LT - Privacy Function) - Escutcheon Trim Heavy Duty Mortise Lock, Non-Keyed BES-45H-LT-ES

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

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Model: 45H0LT3J626
$1,267.00
$731.47
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,267.00
$731.47
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BEST 45H Series Heavy Duty Mortise Lock with Privacy Function and Escutcheon Trim

Professional Grade Mortise Lock Solution

The BEST 45H Series Heavy Duty Mortise Lock delivers commercial-grade security with privacy function and escutcheon trim configuration. Featuring a solid one-piece stainless steel anti-friction latch with 50% more surface contact, this non-keyed mortise lock provides superior strength for demanding applications. Built with 0.095" cold rolled steel construction and 2-3/4" backset, the lock meets ANSI A156.13 Series 1000 Grade 1 Operation and Strength standards with Grade 2 Security rating.

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.
  • Heavy-Duty Construction: Case, cover, and armored front manufactured from 0.095" cold rolled steel for exceptional durability in commercial applications.
  • Precision Engineering: Roller bearing hub mechanism provides smooth, wear-resistant operation with enhanced cycle life.
  • Reversible Configuration: Latch rotates 180 degrees for easy handing change without opening case, with non-handed cylinder retainer design.
  • Enhanced Case Integrity: Four case cover screws plus interlocking armored front and cover design at the latch for maximum structural strength.
  • Professional Grade Ratings: ANSI A156.13 Series 1000 Grade 1 Operation and Strength, Grade 2 Security certification for commercial applications.
  • Standard Door Compatibility: Designed for 1-3/4" thick doors with thick door configuration available for doors up to 5" thick.
  • Anti-Microbial Options: Available with UltraShield antimicrobial protected coating for healthcare and high-cleanliness applications.

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, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or 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

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

Anti-Microbial Option

Available with UltraShield antimicrobial protected coating in 626AM satin chrome plated and 630AM satin stainless steel finishes. The BEST UltraShield finish inhibits the growth of bacteria and other microbes on the surface of the hardware, recommended for healthcare, elderly care, education, transportation, food-service, and hospitality applications.

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 rated for demanding commercial applications. ANSI A156.13 Series 1000 Grade 1 certification ensures dependable performance where security and durability are essential. Engineered with roller bearing hub mechanisms and anti-friction latch design for long-term operational excellence.

Product Specs

Series:
45H
Standard Cylinder:
SFIC Prep Less Core
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:
Mortise 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

BEST 45H0LT3J626 – Frequently Asked Questions

1) Will the BEST 45H privacy mortise lock fit a 1-3/4 inch door?
Yes. The standard 45H configuration is built for 1-3/4 inch doors, which is the usual commercial thickness. For anything thicker, BEST builds a thick door configuration good up to 5 inches, and you have to state the actual door thickness on the order. There is no field adjustment for this, so measure the door before the order goes in.
2) Does the BEST 45H privacy lock take a key or a cylinder?
No. The LT privacy function is non-keyed. It locks from inside by thumbturn and there is no key cylinder to order or key into a system. If you need a keyed opening in the same 45H look, that is a different function within the series, not an option you add to this one.
3) Is the BEST 45H privacy mortise lock ANSI Grade 1?
The 45H carries ANSI A156.13, Series 1000, Grade 1 for Operation and Strength, with Grade 2 Security. That is the rating for the series. It also meets the intent of ANSI A117.1 section 404.2.6, which is what a spec writer looks for on accessible openings.
4) Is the BEST 45H mortise lock handed, or can I change the hand on site?
Handing is not a stocking problem here. The latchbolt rotates 180 degrees to change hand without opening the case, and the auxiliary bolt is stainless and non-handed. That means one lock covers left and right hand openings, which is why property managers standardizing across a building buy the 45H rather than splitting the order by hand.
5) Will the BEST 45H latch and bolt work with my existing ANSI strike?
The latchbolt is solid stainless with a 3/4 inch throw and the privacy deadbolt throws a full 1 inch, so the strike pocket has to be deep enough to take the deadbolt, not just the latch. The latch is one piece with 50 percent more contact surface against the strike than a conventional latch. If the existing strike was cut for a mortise lock with a deadbolt, it will accept this; a latch-only strike will not.
6) What do I have to specify when ordering a BEST 45H privacy mortise lock?
Four things settle the part number: trim style (J wrought escutcheon, M forged escutcheon, or N forged escutcheon with concealed cylinder), lever or knob style (solid tube with or without return, round knob, contour with angle return, curved with or without return, or gull wing), finish, and door thickness if it is over 1-3/4 inches. Fourteen finishes run from 605 bright brass through 630 satin stainless, including 622 matte black and 690 statuary dark bronze.
7) Which mortise lock should be used on a restroom or bedroom door that needs no privacy locking at all?
For an opening that only needs the latch held and released with no locking, a passage function is the right part instead of a privacy lock. The Hager 3810E is a Grade 1 passage mortise lock with escutcheon trim and a 2-3/4 inch backset, the same backset as the BEST 45H. The Falcon MA101 is a Grade 1 heavy-duty mortise passage lock that is field reversible and fire rated. The Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors. The BEST 45H privacy version instead adds a locking function operated from inside the room.
8) What is the closest equivalent to a BEST 45H privacy mortise lock from another manufacturer?
The Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt built for 1-3/4 inch doors, which is the same door thickness the BEST 45H standard lock configuration is designed around. The Hager 3840S is a second Grade 1 privacy mortise lock, with a 2-3/4 inch backset matching the 45H and a 1-3/4 to 2 inch door thickness range. The BEST 45H privacy version carries ANSI A156.13 Series 1000 Grade 1 Operation and Strength with Grade 2 Security and is non-keyed.
9) What do I order instead if the door needs to be keyed rather than privacy locked?
A privacy function is non-keyed, so a keyed opening needs a different function in the same mortise family. The Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series. The Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset with an interchangeable core option for 1-3/4 inch doors, and the NM8050 is the Grade 1 office/entrance function. For classrooms, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset for 1-3/4 inch doors. The BEST 45H privacy configuration is listed as non-keyed.
10) Will a Baldwin 6301 mortise lock body drop into the same door prep as a BEST 45H?
No. The Baldwin 6301 entry/apartment mortise lock body, in both knob by knob and lever by lever versions, uses a 2-1/2 inch backset for doors 1-3/4 inch and over. The BEST 45H uses a 2-3/4 inch backset, so the cylinder and knob hole centers sit a quarter inch apart and the door prep is not shared. The Baldwin 6310 entry/storeroom bodies are also 2-1/2 inch backset.
11) Which mortise lock works on a door thicker or thinner than 1-3/4 inches?
The BEST 45H standard configuration is designed for 1-3/4 inch doors, with a thick door configuration available for doors up to 5 inch when thickness is specified at time of order. Among mortise peers, the Hager 3810E and 3810S passage locks cover 1-3/4 inch to 2-1/2 inch, and the Alarm Lock DL2700CR and DL3500CR classroom locks cover 1-5/8 inch to 1-7/8 inch. The Marks USA 21AC and 22AC ornamental iron mortise locks are built for 1 inch doors, which suits hollow metal stile doors the 45H is not configured for.
12) Which BEST 45H finish should I use in a hospital or long term care facility?
Order 626AM satin chrome or 630AM satin stainless. Both carry the UltraShield antimicrobial protected coating, which inhibits growth of bacteria and other microbes on the hardware surface. BEST recommends it for hospital and healthcare, elderly care, education, transportation, food service and hospitality openings. The standard 626 and 630 are the same finishes without the coating.
13) Privacy mortise lock or privacy cylindrical lock, which do I need for a restroom or patient room?
A mortise lock like the 45H sets into a pocket routed in the door edge and carries a separate 1 inch deadbolt alongside the latch, which is why it holds up on high traffic restrooms and patient rooms. A cylindrical lock bores straight through the face of the door and is quicker to install but has less case behind it. If the door already has a mortise pocket, stay mortise; retrofitting a cylindrical bore into a mortise prep is not a clean job.
14) What else could I buy instead of the BEST 45H privacy mortise lock?
Two straight peers: the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors, and the Hager 3840S is a Grade 1 privacy mortise lock on a 2-3/4 inch backset for 1-3/4 to 2 inch doors. The Hager matches the 45H backset, so it drops into the same pocket. Where the 45H pulls ahead is door range, since the thick door build goes to 5 inches, well past either peer.
15) Does the BEST 45H privacy lock need power or wiring?
No wiring. The 45H is fully mechanical, with a roller bearing hub for the lever and an oil impregnated anti-friction latch. Nothing about it depends on building power, so it works the same during an outage. If the spec calls for credential or keypad access on the same opening, that is an electronic mortise lock instead, such as the Schlage CO-100 in privacy function or the TownSteel FME-2000 with RFID.
16) Is a Schlage L0170 dummy trim a substitute for a BEST 45H privacy mortise lock?
No. The Schlage L0170 is a Grade 1 half dummy trim, non-keyed lever for 1-3/4 inch doors, and a dummy function has no latch or locking mechanism at all - it is a pull. The BEST 45H privacy configuration is a working mortise lock body with a stainless steel latchbolt with 3/4 inch throw and a 1 inch throw deadbolt. Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan mortise entrance locksets are likewise dummy function and do not latch.
17) What is the electronic alternative to a BEST 45H privacy mortise lock for a room that needs a keypad?
The Schlage CO-100-MS is a standalone electronic mortise lock in privacy function, Grade 1 heavy duty, with a keypad reader for 1-3/4 inch doors - the same function class as the BEST 45H privacy lock but credential operated. The Schlage LE Series LEBMB-ADD is a mobile-enabled mortise lock offering privacy, office and apartment functions, BHMA Grade 2 with a 3 hour fire rating, for 1-3/4 inch doors. The BEST 45H is a mechanical, non-electronic lock.
18) Which mortise lock suits a behavioral health or patient room where a privacy lever could be ligature risk?
For anti-ligature openings, 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, and the MRX-A-01 is the same passage function with ligature resistant arch trim in satin stainless steel. The Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset, ligature resistant and ADA compliant in satin stainless steel. The BEST 45H privacy configuration uses lever or knob trim and offers UltraShield antimicrobial 626AM and 630AM finishes for healthcare openings.
19) Is a mortise deadbolt the same thing as a privacy mortise lock?
No. The Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset and the Kaba Ilco 185 Series is a non-handed mortise deadbolt - both throw a bolt only, with no latch and no lever or knob to operate the door. The BEST 45H privacy configuration combines a 3/4 inch throw latchbolt with a 1 inch throw deadbolt in one case and is supplied with escutcheon trim and a lever or knob, so it both latches the door and locks it.
20) Which lock should a school use on a corridor classroom door instead of a privacy function?
Classroom openings call for a classroom function rather than privacy. The Cal-Royal NM8070 is a Grade 1 classroom mortise lockset with auxiliary deadlatch for 1-3/4 inch doors, and the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset in the ML2000 Series. The Marks USA LA318GJ adds a classroom security indicator 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 BEST 45H privacy version is non-keyed and its escutcheon trim comes in wrought, forged, and forged concealed cylinder styles.
21) What mortise lock fits a dormitory room door where the occupant needs to lock behind them on exit?
The Sargent 7925 is a Grade 1 heavy duty dormitory exit function mortise lock in the 7900 Series with rose trim and a single cylinder deadbolt, which is the corridor/dormitory function rather than privacy. The BEST 45H privacy configuration is non-keyed and ships with escutcheon trim, so it locks from inside the room only without key control from the corridor side.
22) What is the difference between the BEST 45H and an office function mortise lock like the Hager 3850E?
The Hager 3850E is a Grade 1 office function mortise lock with lever and escutcheon, non-keyed, with a 2-3/4 inch backset and a 1-3/4 inch to 2-1/2 inch door thickness range. The Cal-Royal NM8050 is the Grade 1 entrance/office function for 1-3/4 inch doors. Office function is intended for a room whose outside lever is secured for the working day, while the BEST 45H privacy configuration is intended for a room locked by the occupant from inside. Both the 3850E and the 45H are non-keyed and use a 2-3/4 inch backset with escutcheon trim.
23) Which mortise lock should I use if the opening has to be released by an access control system?
For an electrified opening, the Command Access ML190 is a heavy-duty motorized mortise lock in storeroom function with field selectable electric latch retraction or electric unlock operation on 24VDC. The Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock in corridor function with request to exit, keyed outside, running 12 or 24VDC on 1-3/4 inch doors. The BEST 45H is mechanical and non-electronic, operated only at the lever or knob.
24) How tough is the BEST 45H lock case for a school or high traffic building?
Case, cover and armored front are 0.095 inch cold rolled steel, zinc dichromate plated against corrosion, held with four case cover screws plus an interlocking armored front and cover at the latch. It is rated heavy duty for commercial use. That construction is what carries the Grade 1 Operation and Strength result under ANSI A156.13.
25) Which BEST 45H escutcheon trim should I pick, and does it change the door prep?
Three escutcheon options: J is a wrought escutcheon, M is forged, and N is forged with a concealed cylinder. On the privacy function there is no key cylinder, so the N concealed cylinder styling is an appearance choice rather than a security one. All three are escutcheon plates rather than roses, so they cover more of the door face, which matters when you are replacing older trim and want the previous screw holes hidden.
26) Will the 613 and 690 finishes on the BEST 45H stay looking the same over time?
No, and that is intended. 613 oxidized satin bronze is oil rubbed and wears over time to an antique appearance, so units installed at different dates will not match until they age in. 690 dark bronze coated stays a dark brown appearance over time. If you need every door on a floor to look identical from day one, use a plated finish like 626 satin chrome or 630 satin stainless instead.
27) Is a Sargent 130KB thumbturn a replacement for a privacy mortise lock?
No. The Sargent 130KB is a standard duty mortise thumbturn for the 8200 Series and the Sargent 130W is a standard duty mortise thumbturn with a round backplate for the 7800 Series - both are trim pieces that turn an existing lock body, not lock bodies themselves. The BEST 45H privacy configuration is a complete heavy duty mortise lock with a 0.095 inch cold rolled steel case, cover and armored front, supplied with escutcheon trim.
How fast can I get the BEST 45H0LT3J626 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 45H0LT3J626 come with a warranty?
Absolutely. The BEST 45H0LT3J626 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 45H0LT3J626?
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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