BEST 45H Series Heavy Duty Mor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,528.00
$848.89
BEST 45H Series ( LB - Private Function) - Escutcheon Trim Heavy Duty Mortise Lock with Double Visual Indicator, No Housing and No Core

BEST 45H Series Heavy Duty Mortise Lock with Privacy Function and Double Visual Indicator

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Model: 45H0LB3J619VIB
$1,528.00
$848.89
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,528.00
$848.89
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BEST 45H Series Heavy Duty Mortise Lock with Privacy Function and Double Visual Indicator

Professional Privacy Function Mortise Lock Solution

The BEST 45H Series Heavy Duty Mortise Lock delivers commercial-grade security with privacy function and double visual indicator capability. Engineered with a solid one-piece stainless steel anti-friction latch providing 50% more surface contact with strike, this mortise lock features 2-3/4" backset and is designed for doors 1-3/4" thick. ANSI A156.13 Series 1000 Grade 1 Operation and Strength, Grade 2 Security certified 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: Case, cover, and armored front manufactured from 0.095" cold rolled steel with zinc dichromate plating for exceptional durability and corrosion protection.
  • Visual Indicator System: Double visual indicator shows padlock icon open for unlocked and padlock icon closed and painted red for locked states for clear operational status.
  • 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.
  • ANSI Compliance: Meets ANSI A156.13 Series 1000 Grade 1 Operation and Strength, Grade 2 Security standards and ANSI A117.1 section 404.2.6 accessibility requirements.
  • Antimicrobial Options: Available with UltraShield antimicrobial protected coating (626AM and 630AM finishes) 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 (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 for 2-3/4" backset configuration.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for mortise lock installation.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications, utilizing the self-aligning trim mechanism for accurate positioning.
  5. Adjust operational components including the four position hub toggle for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation including visual indicator function to verify proper privacy function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Healthcare Institution Privacy Rooms
  • Educational Facility Administrative Offices
  • Commercial Office Building Conference Rooms
  • Government Building Secure Areas
  • Multi-Tenant Residential Properties
  • Hospitality Industry Guest Areas
  • Industrial Facility Control Rooms

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 where product cleanliness is a high priority.

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 Grade 1 Operation and Strength certification ensures dependable performance in high-traffic environments. Enhanced design features including roller bearing mechanisms and anti-friction latch technology provide superior durability where consistent 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 45H0LB3J619VIB – Frequently Asked Questions

1) Will the BEST 45H privacy mortise lock fit a 1-3/4 inch door?
Yes, 1-3/4 inches is the standard configuration for the 45H mortise lock. If the opening is thicker, BEST builds a thick door configuration for doors up to 5 inches, but you have to state the actual thickness when you order it. There is no field adjustment for that, so measure the leaf before the order goes in.
2) Does the BEST 45H privacy lock come with a cylinder or core?
No. The 45H LB privacy function ships less cylinder and is a non-keyed lock, so no core or housing is included. Privacy function locks the lever from inside without a key, which is why there is no keyed side to it. If you need a keyed function on that opening, the 45H privacy is the wrong choice.
3) Do I have to specify handing when ordering a BEST 45H mortise lock?
Handing is a required selection on the order, left hand, right hand, left hand reverse, or right hand reverse. That said, the lock body itself is non-handed: the latch reverses by rotating 180 degrees without opening the case, and there is a four position hub toggle. So if the hand is called wrong on the drawing, a locksmith can correct it at the door instead of returning the lock.
4) What ANSI grade is the BEST 45H mortise lock, and does it meet ADA?
The 45H carries ANSI A156.13 Series 1000, Grade 1 Operation and Strength, Grade 2 Security. The design and operation also meet the intent of ANSI A117.1 section 404.2.6 for accessibility. If your spec demands Grade 1 across the board including security, the 47H Series is the one certified Grade 1 for operation, strength, and security.
5) What does the double visual indicator on the BEST 45H actually show?
Two indicators, one on each side of the door, using a padlock icon. Open padlock means unlocked; closed padlock painted red means locked. That is what makes this lock work for restrooms, exam rooms, and conference rooms where somebody needs to know from the corridor whether the room is occupied before they try the lever.
6) Will the BEST 45H latch into the strike that is already in my frame?
The latchbolt is solid one-piece stainless with a 3/4 inch throw, and the privacy function also carries a stainless deadbolt with a 1 inch throw. A 3/4 inch latch throw needs a strike with matching lip and pocket depth, and the 1 inch deadbolt needs a bolt pocket the old strike may not have if the previous lock was latch-only. If the existing frame prep was cut for a full mortise lock with a deadbolt, you are in the right territory; if it was a passage-only prep, plan on the strike package.
7) Should I use a privacy mortise lock or a classroom function lock on an office door?
Privacy is the wrong function for an office you need to secure. The 45H privacy is non-keyed: it locks from inside only and there is no key control from the corridor. Use it on restrooms, exam rooms, and conference rooms. For a door staff must lock and unlock with a key from outside, look at an office or classroom function instead, such as the Cal-Royal NM8050 office/entrance or NM8070 classroom lockset, both Grade 1 mortise for 1-3/4 inch doors, or the Corbin Russwin ML2003 Grade 1 classroom mortise.
8) What is the closest Grade 1 mortise privacy lock to the BEST 45H if the BEST core system is not in use?
The Cal-Royal NM8440 is a heavy duty Grade 1 mortise lockset with a privacy/bed/bath function and a deadbolt, fitted for 1-3/4 inch doors. The BEST 45H is a heavy duty commercial mortise lock with a privacy function, a 2-3/4 inch backset, and a double visual indicator that shows a padlock icon open for unlocked and a padlock icon closed and painted red for locked. Both are non-keyed privacy functions on a 1-3/4 inch door; the 45H adds the indicator readout, and the NM8440 is specified with its deadbolt as part of the privacy set.
9) Is there a privacy mortise lock with the same 2-3/4 inch backset as the BEST 45H but a wider door thickness range?
The Hager 3840S is a 3800 Series Grade 1 privacy mortise lock with a 2-3/4 inch backset and a door thickness range of 1-3/4 inch to 2 inch. The BEST 45H uses the same 2-3/4 inch backset, with the standard configuration built for 1-3/4 inch doors and a thick door configuration available for doors up to 5 inch when the thickness is specified at time of order. Both cover the standard 1-3/4 inch commercial door; the Hager range extends to 2 inch as catalogued, while the 45H handles thicker doors through a separate ordered configuration.
10) What should I use instead of the BEST 45H privacy lock on a restroom or closet door that needs no locking at all?
For an opening that only needs latching, the Schlage PM010 is a Grade 1 passage latch mortise lock, non-keyed, 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 and 3810E are 3800 Series Grade 1 passage mortise locks with a 2-3/4 inch backset, the 3810S with rose trim and the 3810E with escutcheon, both for doors 1-3/4 inch to 2-1/2 inch. The BEST 45H is a privacy function lock with a double visual indicator, so it is specified when the room has to be secured from the inside and its status read from the corridor.
11) For a classroom door that needs a lock status indicator, is the BEST 45H the right choice or is there a better fit?
For a classroom opening, the Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset with an ANSI strike and a steel escutcheon measuring 8-1/2 inch H x 2-3/4 inch W x 7/16 inch, for 1-3/4 inch doors, and the Cal-Royal NM8070 is a heavy duty Grade 1 classroom mortise lockset with an auxiliary deadlatch for 1-3/4 inch doors. The BEST 45H carries the double visual indicator but its function is privacy, so it suits offices, exam rooms and restrooms rather than a classroom security lockdown.
12) For a behavioral health room, can the BEST 45H be used or is an anti-ligature mortise lock required?
For a ligature resistant opening, the TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in stainless steel with a passage function for 1-3/4 inch doors, the MRX-A-01 is the same passage function with satin stainless steel 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 offered with lever styles including gull wing, curved with return and round knob, and its design meets the intent of ANSI A117.1 section 404.2.6, but those trims are conventional lever and knob shapes rather than ligature resistant.
13) Does a residential-style mortise body like the Baldwin 6301 fit the same prep as the 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, as does the Baldwin 6310 entry/storeroom body. The BEST 45H uses a 2-3/4 inch backset with a stainless steel faceplate 8 inch H x 1-1/4 inch W x 1/16 inch T. A 2-1/2 inch backset body sets the trim a quarter inch closer to the edge of the door, so the two are not interchangeable in an existing mortise pocket without reworking the prep.
14) How do I get Grade 1 security out of a BEST 45H instead of Grade 2?
On the 45H it takes a drill resistant core. With escutcheon trims, use a 1CD, 1CDP, 1CDF, or 1CDX core; with sectional trims, a 1EK7K4 high security cylinder is required. Without one of those, the lock certifies at Grade 2 Security. Note that the privacy function is non-keyed, so this route applies to the keyed functions in the series.
15) Which finish should I order for a hospital or food service door?
BEST offers two antimicrobial options on the 45H, 626AM satin chrome and 630AM satin stainless, both with the UltraShield coating that inhibits growth of bacteria and other microbes on the hardware surface. BEST recommends them for hospital and healthcare, elderly care, education, transportation, food service, and hospitality. The remaining twelve finishes run 605 bright brass through 690 statuary dark bronze, with no coating.
16) What trim and lever choices do I have to pick when ordering a 45H privacy lock?
Three decisions on top of finish and handing. Trim style is H rose, R rose, or J wrought escutcheon. Lever style is 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. The trim carries a lever return spring to resist lever droop. Escutcheon versus rose matters if you are covering an old cut-out in the door face.
17) What is a comparable Grade 1 privacy mortise lock if the BEST 45H is not right for the job?
Two close ones. 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 with a 2-3/4 inch backset that covers 1-3/4 to 2 inch doors, which is worth knowing if your leaf is slightly over standard and you do not want to order a special thick door build. What neither of those brings is the 45H double visual indicator.
18) I need an occupancy indicator lock but with electronic access. Is there an alternative to the BEST 45H?
For a mechanical indicator on a keyed opening, the Marks USA LA318GJ is 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. If you want privacy function with a credential, the Schlage CO-100 is a Grade 1 standalone electronic mortise in privacy function with a keypad reader for 1-3/4 inch doors. The 45H itself is purely mechanical, no electronics.
19) Is the BEST 45H mortise lock heavy enough for a high traffic public restroom?
It is built for it. Case, cover, and armored front are 0.095 inch cold rolled steel with zinc dichromate plating for corrosion resistance, the hub runs on roller bearings, and the latch is solid one-piece stainless, oil impregnated, with 50 percent more surface contact with the strike than the previous design. The armored front wraps both latch and deadbolt for lateral strength. It is rated commercial, heavy duty.
20) If the door needs to be keyed instead of privacy, what mortise lock takes the place of the BEST 45H?
For a keyed opening, the Cal-Royal NM8080 is a heavy duty Grade 1 storeroom mortise lockset with an interchangeable core option for 1-3/4 inch doors, the Accentra 8805FL is a Grade 1 storeroom mortise lock with an Arcadia lever, and the Cal-Royal NM8050 is a Grade 1 office/entrance mortise lockset with an auxiliary deadlatch for 1-3/4 inch doors. The BEST 45H is non-keyed with a privacy function, so it is specified where the room is locked from the inside rather than controlled by a key from the corridor.
21) What is the electronic equivalent of the BEST 45H privacy mortise lock?
The Schlage CO-100-MS-40-KP is a standalone electronic mortise lock with a privacy function and a keypad reader, heavy duty, Grade 1, for 1-3/4 inch doors. The Schlage Electronics 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. The BEST 45H is a non-electronic mortise lock, so it needs no power, credential enrollment or battery service at the opening.
22) Is a mortise deadbolt like the Sargent 4874 a substitute for the BEST 45H privacy 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 mortise lock with a deadbolt function; both throw a bolt but carry no latch and no lever, so the door has no operating trim. The BEST 45H is a complete privacy lockset with a solid stainless steel latchbolt with 3/4 inch throw, a stainless steel deadbolt with 1 inch throw, and lever or knob trim in H rose, R rose or J wrought escutcheon. If the opening already has a latch and only needs a bolt added, a mortise deadbolt fits; if it needs one device to latch, secure and indicate, it does not.
23) What non-keyed office mortise lock works where the BEST 45H privacy function is more than the door needs?
The Hager 3850E is a 3800 Series Grade 1 office mortise lock with lever and escutcheon, non-keyed, with a 2-3/4 inch backset for doors 1-3/4 inch to 2-1/2 inch. It shares the 2-3/4 inch backset and non-keyed operation with the BEST 45H, which is a privacy function lock with a double visual indicator reading unlocked or locked. The office function suits a door held in a chosen state during business hours; the 45H privacy function suits one occupied and secured from inside for a period at a time.
24) For a healthcare corridor door, how does the BEST 45H compare to the TownSteel FME-2000?
The TownSteel FME-2000 Series is a Grade 1 heavy duty classroom function mortise lockset with RFID technology for 1-3/4 inch doors, and the FME-4000 Series is an electronic intruder classroom mortise lockset with RFID, also Grade 1 heavy duty for 1-3/4 inch doors. The BEST 45H is a heavy duty non-electronic privacy mortise lock offered in 626AM satin chrome and 630AM satin stainless steel with UltraShield antimicrobial protected coating, which BEST recommends for hospital and healthcare, elderly care, education, transportation, food-service and hospitality applications. The RFID locksets bring credential control to the opening; the 45H brings a privacy function with an antimicrobial surface option and no electronics to power.
25) Can I standardize a whole building on BEST 45H locks with different functions on different doors?
That is the usual approach. The 45H is one case platform across functions, so the door and frame prep, the 2-3/4 inch backset, and the 8 x 1-1/4 x 1/16 inch faceplate stay constant while the function changes door to door. Pick one finish and one lever style across the fleet and the openings match visually even where the function differs. Where a door needs Grade 1 security rather than Grade 2, that is where the 47H Series comes in.
26) Does the faceplate on a BEST mortise lock need to be ordered to match a beveled door edge?
No. The 45H lock face adjusts to the proper bevel automatically during installation, and the armored front uses a staked assembly that self-aligns as it goes in. The faceplate is 8 x 1-1/4 x 1/16 inches in stainless, brass, or bronze depending on the finish you order. One less thing to call out on a beveled edge.
27) Are the Emtek mortise entrance locksets an alternative to the BEST 45H?
No. The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan mortise entrance locksets are dummy function, meaning fixed trim with no working latch. The BEST 45H is a heavy duty commercial mortise lock with a privacy function, a working latchbolt and deadbolt, and a double visual indicator. Dummy trim suits an inactive leaf or a pull-only door; an operating privacy opening needs the working lock.
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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 45H0LB3J619VIB come with a warranty?
Absolutely. The BEST 45H0LB3J619VIB 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 45H0LB3J619VIB?
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