BEST 45H Series Heavy Duty Mor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,082.00
$670.11
BEST BEST 45H Series (N - Passage Function) - Rose Trim Heavy Duty Mortise Lock, Non-Keyed BES-45H-N-RS

BEST 45H Series Heavy Duty Mortise Lock - Passage Function with Rose Trim

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Model: 45H0N3H626
$1,082.00
$670.11
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,082.00
$670.11
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BEST 45H Series Heavy Duty Mortise Lock - Passage Function with Rose Trim

Professional Grade Mortise Lock Solution

The BEST 45H Series Heavy Duty Mortise Lock delivers commercial-grade security and durability with passage function and rose trim configuration. Engineered with 0.095" cold rolled steel construction and featuring a solid one-piece stainless steel anti-friction latch with 3/4" throw, this mortise lock provides 50% more surface contact with strike for superior strength. The 2-3/4" backset design accommodates standard door preparations while the 8" H x 1-1/4" W x 1/16" T stainless steel faceplate ensures professional installation aesthetics.

Professional Features & Benefits

  • Heavy-Duty Steel Construction: 0.095" cold rolled steel case, cover, and armored front provide exceptional strength and durability for demanding commercial applications.
  • Enhanced Latch Performance: Solid one-piece stainless steel anti-friction latch delivers 50% more surface contact with strike and precision-engineered curve for enhanced cycle life with reduced wear.
  • Superior Case Integrity: Four case cover screws at each corner plus interlocking armored front and cover design at the latch provide maximum structural strength.
  • Smooth Operation Mechanism: Roller bearing hub mechanism ensures smooth, wear-resistant operation with lever return spring mechanism located in trim for enhanced protection against lever droop.
  • Field-Reversible Design: Reversible latch rotates 180 degrees for easy handing change without opening case, with non-handed cylinder retainer and auxiliary bolt for installation flexibility.
  • Self-Aligning Installation: Armored front self-aligns with door bevel during installation, and trim mechanism provides fast, easy, and accurate installation process.
  • ANSI Grade 1 Compliance: Meets ANSI A156.13 Series 1000 Grade 1 Operation and Strength standards for commercial applications and ANSI A117.1 section 404.2.6 accessibility requirements.
  • Antimicrobial Finish 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.
  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 for proper alignment, latching, and smooth operation throughout the full range of motion, ensuring lever return spring mechanism functions properly.
  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

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-engineered anti-friction latch design provides enhanced cycle life with reduced wear, while the roller bearing hub mechanism ensures smooth, wear-resistant operation. ANSI Grade 1 compliance and multiple finish options including antimicrobial coatings make this the dependable choice where professional performance is essential.

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 45H0N3H626 – Frequently Asked Questions

1) Will the BEST 45H passage mortise lock fit a 1-3/4 inch door?
Yes, 1-3/4 inches is exactly what the standard 45H lock configuration is built for, and that is the normal commercial door thickness. For thicker doors the 45H is available in a thick door configuration up to 5 inches, but the thickness has to be specified at the time of the order, so measure the leaf before you buy rather than assuming the standard case will stretch.
2) Does the BEST 45H passage lock have a key cylinder or a deadbolt?
Neither is in play on the passage version. The N passage function is non-keyed, so both levers always retract the latch and the door is never locked from either side. Use it on hall, closet, corridor and stair doors where you only need latching and controlled closure. If you need to lock the opening, you want a keyed 45H function instead, or a keyed peer like the Cal-Royal NM8080 storeroom lockset.
3) Will a 45H mortise lock drop into a door already prepped for a 2-3/4 inch backset mortise pocket?
The 45H uses a 2-3/4 inch backset, which is the standard commercial mortise backset, so a door already routed for a 2-3/4 inch mortise pocket is the right prep. The armored front self-aligns with the door bevel during installation, so a beveled edge does not need a separate shimming step. Note the faceplate is 8 inches H x 1-1/4 inches W x 1/16 inch T; if the existing cutout is a different face size you will have a visible gap or need to re-rout.
4) Do I have to specify handing when I order a BEST 45H mortise lock?
Handing is not a barrier here. The latchbolt is reversible and rotates 180 degrees without opening the case, and the auxiliary bolt is non-handed stainless steel, so one lock covers left and right hand openings and can be changed in the field if the door swing turns out different from the drawing. That matters on a fleet buy: you can stock one part number instead of splitting the order by hand.
5) Will the 45H latch engage my existing ANSI strike?
The latchbolt is solid one-piece stainless steel with a 3/4 inch throw, which is the standard commercial mortise latch projection, so it reaches into a normal ANSI strike lip on a door hung with typical gap. The latch is oil-impregnated for anti-friction operation and the one-piece design gives 50 percent more surface contact with the strike than a segmented latch. If your existing frame prep is for a 2-3/4 inch backset mortise lock, the latch will line up.
6) Is the BEST 45H mortise lock ANSI Grade 1, and does it meet ADA requirements?
The 45H meets ANSI A156.13, Series 1000, Grade 1 for Operation and Strength, and Grade 2 for Security. The design and operation also meet the intent of ANSI A117.1 section 404.2.6, the accessibility clause for door hardware operation. On the passage function the security grade is largely academic since the lock is non-keyed, but the Grade 1 operational and strength rating is what a spec writer on an institutional job is asking for.
7) Is there a mortise passage lock better suited to a behavioral health or psychiatric unit than the BEST 45H?
For anti-ligature openings, TownSteel makes two Grade 1 heavy-duty passage mortise locksets for 1-3/4 inch doors: the MRX-L-01 with an anti-ligature lever in stainless steel, and the MRX-A-01 with ligature resistant arch trim in satin stainless steel. Marks USA offers the 5PDN, a Grade 1 hospital passage mortise push/pull paddleset that is ligature resistant and ADA compliant in satin stainless steel. The BEST 45H passage uses conventional lever and knob trim - lever styles include curved with and without return, contour with angle return, gull wing, and a round knob - which is the standard commercial choice where ligature resistance is not required.
8) What should I use instead of a BEST 45H passage lock if the door needs to lock?
The 45H in passage configuration is non-keyed, so it latches but does not lock. For a keyed opening on the same mortise prep, the Accentra 8805FL is a Grade 1 storeroom mortise lock, the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset with an interchangeable core option, and the Cal-Royal NM8050 is a Grade 1 office/entrance mortise lockset with auxiliary deadlatch. For a classroom opening, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset for 1-3/4 inch doors.
9) Which mortise lock should I use on a restroom or bedroom door instead of a passage function?
Passage function on the BEST 45H latches without locking, so it does not suit a restroom or bedroom. The Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset for doors 1-3/4 inch to 2 inch thick, and the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors. Both carry the same 2-3/4 inch backset prep family as the 45H in the Hager case.
10) Is a dummy mortise trim the same thing as a passage mortise lock?
No. The BEST 45H passage configuration is a working mortise lock with a latchbolt - the lever retracts a solid stainless steel latch with a 3/4 inch throw. The Schlage L0170 is a half dummy trim, Grade 1 mortise non-keyed lever with dummy function, and the Emtek 3019 Brisbane and 3102 Memphis are mortise entrance locksets in dummy function. Dummy trim is fixed and has no latch, so it holds nothing closed; it is used on inactive leaves and pull-only doors.
11) Which mortise lock do I use if the door is thicker than 1-3/4 inches?
The BEST 45H standard configuration is built for 1-3/4 inch doors, with a thick door configuration available for doors up to 5 inch thick when the thickness is specified at time of order. Among other mortise passage locks, the Hager 3810S and 3810E cover 1-3/4 inch to 2-1/2 inch, and the Baldwin 6301 entry/apartment mortise lock body is listed for 1-3/4 inch and over with a 2-1/2 inch backset. Note the Baldwin backset is 2-1/2 inch, not the 2-3/4 inch the 45H uses, so the door prep is not the same.
12) Is the Baldwin 6301 mortise lock body a drop-in substitute for a BEST 45H?
No. The Baldwin 6301 and 6301LS are entry/apartment function mortise lock bodies with a 2-1/2 inch backset, and the Baldwin 6310 and 6310190RRLS are entry/storeroom function with a 2-1/2 inch backset. The BEST 45H uses a 2-3/4 inch backset. A different backset means the lock case sits at a different distance from the door edge, so the door prep and the trim hole locations do not line up between the two.
13) What do I need to specify when ordering a BEST 45H passage mortise lock?
Four decisions. Trim style: H rose 2-3/4 inch flat, R rose 2-3/4 inch concave, or S rose 3-1/2 inch flat. Lever or knob style: 12 solid tube no return, 3 solid tube with return, 4 round knob, contour with angle return, curved with return, curved without return, or gull wing. Finish: 605, 606, 611, 612, 613, 618, 619, 622, 625, 626, 626AM, 629 is a catalog finish, 630, 630AM and 690. And door thickness if the leaf is over 1-3/4 inches.
14) Does the BEST 45H come with a core, or do I need to order one separately?
The 45H is supplied with SFIC prep, less core. On the N passage function that does not matter because the lock is non-keyed and takes no cylinder at all. On the keyed 45H functions you would be ordering the small format interchangeable core separately and keying it into your existing system. That is the point of SFIC prep on a fleet: cores get keyed and swapped without pulling locks off doors.
15) What else could I buy instead of a BEST 45H passage mortise lock?
Direct passage mortise equivalents ZenSupply carries include the Falcon MA101, a Grade 1 heavy duty field reversible mortise passage lock; the Schlage PM010, a Grade 1 non-keyed passage latch mortise lock rated for 1-3/4 inch doors; and the Hager 3810S, a Grade 1 passage mortise lock with rose trim on a 2-3/4 inch backset, which is the closest match to the 45H rose configuration. Hager also lists a door thickness range of 1-3/4 to 2-1/2 inches on the 3810S, which is useful if your leaf runs thick.
16) Will the BEST 45H rose trim cover the marks left by the old escutcheon plate?
Probably not with the small roses. The 45H rose options are 2-3/4 inch flat, 2-3/4 inch concave, and 3-1/2 inch flat. A full escutcheon such as the plate on the Marks USA LA318GJ measures 8-1/2 x 2-3/4 x 7/16 inches, so a 2-3/4 inch round rose leaves a lot of old prep and paint shadow exposed. If you are replacing escutcheon trim, the 3-1/2 inch S rose is the largest cover the 45H offers, and a full escutcheon lock like the Hager 3810E is the closer visual match.
17) Does the BEST 45H need power or wiring run to the door?
No wiring. The 45H is a purely mechanical, non-electronic mortise lock, so there is no transfer hinge, power supply or fail-safe behavior to design around. If the opening needs access control, that is a different product family: the Command Access ML190 is a motorized mortise lock with field selectable EL/EU operation on 24VDC, and the Schlage L9092EU with 03A trim is an electric lock/unlock outside lever mortise lock with request-to-exit on 12/24VDC.
18) Can I standardize my whole building on BEST 45H mortise locks and just change the function per door?
That is what the 45H series is built for. The same case, the same 2-3/4 inch backset prep, the same 8 inch faceplate and the same trim and finish families run across the series, so the passage function goes on hall and closet doors while keyed functions go on offices and storerooms, and every door takes the same rout. Pick one finish and one lever style across the fleet and your prep, your trim inventory and your look stay consistent. The 47H series is the higher security sibling, carrying ANSI A156.13 Series 1000 Grade 1 for Operation, Strength and Security.
19) Which mortise passage lock should a healthcare facility standardize on for cleanability?
The BEST 45H passage lock is offered in 626AM satin chrome and 630AM satin stainless steel with UltraShield antimicrobial protected coating, which inhibits the growth of bacteria and other microbes on the hardware surface, and BEST recommends it for hospital, elderly care, education, transportation, food-service and hospitality applications. Among other passage mortise options, the Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset in satin stainless steel, ADA compliant, which removes the lever grip entirely in favor of a paddle.
20) What is the difference between the BEST 45H with rose trim and a mortise passage lock with escutcheon trim?
The BEST 45H passage comes in rose trim in three styles: H rose 2-3/4 inch flat, R rose 2-3/4 inch concave, and S rose 3-1/2 inch flat. Hager offers the same passage function both ways - the 3810S is the Grade 1 passage mortise lock with rose and the 3810E is the Grade 1 passage mortise lock with escutcheon, both with a 2-3/4 inch backset for doors 1-3/4 inch to 2-1/2 inch. Rose trim covers a smaller area of the door face; escutcheon is a full plate. On BEST hardware the trim choice also affects security rating, since Grade 1 Security requires a drill resistant core with escutcheon trims and the 1EK7K4 high security cylinder with sectional trims.
21) Can I use an electronic mortise lock in place of the BEST 45H on the same opening?
The BEST 45H is a non-electronic mechanical mortise lock. Electronic mortise options include the Schlage CO-100 standalone electronic mortise lock with keypad reader, Grade 1 heavy duty privacy function for 1-3/4 inch doors; the TownSteel FME-2000, a Grade 1 heavy duty classroom mortise lockset with RFID for 1-3/4 inch doors; and the Dormakaba E-Plex 2066 electronic pushbutton keyless mortise lock. These carry credential functions the mechanical 45H does not, and they bring power and credential management into the opening; the 45H passage function needs neither.
22) What mortise lock covers a dormitory or corridor opening that a passage function cannot?
The Sargent 7925 is a Grade 1 heavy duty dormitory exit function mortise lock with rose trim and a single cylinder deadbolt, in the 7900 Series. It covers corridor and dormitory openings where the room side must secure the door. The BEST 45H in passage configuration is non-keyed and heavy duty with rose trim, so it matches the 7925 on trim type and duty level but not on the locking function.
23) Does the BEST 45H accept the same cylinder as other Grade 1 mortise locks?
The BEST 45H ships with an SFIC prep less core, so it takes a small format interchangeable core supplied separately. Among comparable mortise locksets, the Cal-Royal NM8080 Grade 1 storeroom lockset is offered with an interchangeable core option. Cylinder choice also affects the BEST security rating: Grade 1 Security on the 45H requires a drill resistant core - 1CD, 1CDP, 1CDF or 1CDX - with escutcheon trims, or the 1EK7K4 high security cylinder with sectional trims. On the passage configuration the lock is non-keyed, so no core is operated.
24) What are the heavy duty mortise passage alternatives if I need a fire rated opening?
The Falcon MA101 Grade 1 heavy-duty mortise passage lock is fire rated and field reversible. The BEST 45H passage is heavy duty commercial hardware built to ANSI A156.13 Series 1000, Grade 1 Operation and Strength, with a reversible latch that rotates 180 degrees for a handing change without opening the case - the same field-reversible handling the MA101 offers.
25) Why do levers on old mortise locks droop, and does the BEST 45H fix that?
Droop comes from a worn or undersized return spring, usually sitting in the lock case where it takes the full load of every pull. On the 45H the lever return spring mechanism lives in the trim rather than the case, which is what protects against droop, and the hub runs on roller bearings for wear resistance. The case itself is held by four cover screws at each corner with an interlocking armored front and cover at the latch. On a high traffic corridor that is the difference between a lever that still sits level in year five and one that does not.
26) Is a BEST 45H mortise lock case protected against corrosion in a damp or coastal building?
The case is 0.095 inch cold rolled steel that is zinc dichromate plated for corrosion protection, and the latchbolt, auxiliary bolt and faceplate are stainless steel. Faceplates are also available in brass and bronze material. For exposed exterior openings, note this is a mechanical lock with no stated weatherproof rating; a weatherproof-designed unit such as the Alarm Lock DL2700CR is what to look at where the door takes direct weather.
How fast can I get the BEST 45H0N3H626 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 45H0N3H626 come with a warranty?
Absolutely. The BEST 45H0N3H626 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 45H0N3H626?
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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