BEST 45H Series Universal Dead...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,392.00
$845.86
BEST 45H Series Universal Deadbolt Function Heavy Duty Mortise Lock with Rose Trim

BEST 45H Series Universal Deadbolt Function Heavy Duty Mortise Lock with Rose Trim

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Model: 45H7UNAB15H626
$1,392.00
$845.86
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,392.00
$845.86
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BEST 45H Series Universal Deadbolt Function Heavy Duty Mortise Lock with Rose Trim

Professional Grade Mortise Lock Solution

The BEST 45H Series Universal Deadbolt Function Heavy Duty Mortise Lock delivers commercial-grade security with a solid one-piece stainless steel anti-friction latch providing 50% more surface contact with strike for superior strength. Featuring a 2-3/4" backset, 1" deadbolt throw, and 3/4" latchbolt throw, this Grade 1 mortise lock is constructed from 0.095" cold rolled steel for exceptional durability. 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 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 corrosion protection and maximum durability.
  • Superior Case Integrity: Four case cover screws at each corner plus interlocking armored front and cover design at the latch provide enhanced structural strength.
  • Smooth Operation: Roller bearing hub mechanism delivers wear-resistant operation with lever return spring mechanism in trim for enhanced protection against lever droop.
  • Field Reversible Design: Reversible latch rotates 180 degrees for easy handing change without opening case, with four position hub toggle design for flexible configuration.
  • Self-Aligning Installation: Armored front self-aligns with door bevel during installation, with self-aligning trim mechanism for fast, easy, and accurate installation.
  • Enhanced Security Features: Solid machined cylinder rings with wavy washer provide resistance to wrenching, with cylinder security screw preventing removal without first removing interchangeable core.
  • Grade 1 Performance: Meets ANSI A156.13 Series 1000 Grade 1 Operation and Strength standards with Grade 2 Security rating for demanding commercial 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 mortise lock.
  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 and frame by drilling required holes and routing as specified in manufacturer instructions for the 2-3/4" backset configuration.
  4. Install all mounting hardware and secure the mortise lock to door and frame per manufacturer torque specifications, utilizing the self-aligning armored front design.
  5. Adjust operational components including the four position hub toggle for proper alignment, latching, and smooth operation of the 1" deadbolt throw and 3/4" latchbolt throughout the full range of motion.
  6. Test lock operation to verify proper function of both locking mechanisms 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 enhanced cycle life. Meeting ANSI A156.13 Series 1000 Grade 1 standards, these locks provide the superior strength and security required for demanding commercial applications where dependable performance is essential.

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
Lock Function:
Universal
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Universal
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 45H7UNAB15H626 – Frequently Asked Questions

1) Will the BEST 45H mortise lock fit a door thicker than 1-3/4 inches?
Standard 45H lock bodies are built for 1-3/4 inch doors. For anything thicker, BEST builds a thick-door configuration covering doors up to 5 inches, but the thickness has to be specified at time of order, so it isn't something you swap in later from stock. If your openings are standard commercial 1-3/4 inch leaves, order the standard configuration.
2) Does the BEST 45H mortise lock come with a cylinder or core?
No core is included. The 45H ships with SFIC prep and less core, so you supply the BEST small format interchangeable core keyed into your system. It's a single cylinder keyed lock, so key access is from one side with the deadbolt operated by thumbturn on the other.
3) Is the BEST 45H handed, or can I change the hand in the field?
Field reversible. The latchbolt rotates 180 degrees to change handing without opening the lock case, and the four position hub toggle lets you set the trim function. The auxiliary bolt is non-handed stainless. That means one lock body covers left and right hand openings, which is why maintenance shops stock it as a single SKU across a building.
4) Will the 45H deadbolt reach my existing ANSI strike?
The deadbolt throws a full 1 inch and the latchbolt 3/4 inch, both stainless. A 1 inch throw needs a strike box deep enough to take it, so if you're reusing an existing frame prep, confirm the bolt pocket depth before you set the lock. The anti-friction latch is oil-impregnated and shaped to give roughly 50 percent more contact face with the strike than a standard latch.
5) Does the BEST 45H meet Grade 1 for a school or hospital spec?
The 45H carries ANSI A156.13 Series 1000, Grade 1 Operation and Strength with a Grade 2 Security rating. To get Grade 1 Security out of it you have to pair a drill resistant core (1CD, 1CDP, 1CDF or 1CDX) with escutcheon trim, or a 1EK7K4 high security cylinder with sectional trim. If the spec calls for Grade 1 Security straight out of the box, the 47H Series is rated Grade 1 for Operational, Strength and Security.
6) What is a Grade 1 mortise storeroom lock alternative to the BEST 45H if the opening needs a fixed storeroom function instead of a universal lock body?
The BEST 45H is a universal function mortise lock with a 1 inch deadbolt throw, 2-3/4 inch backset and SFIC prep less core, so it is configured on the job rather than ordered as a single fixed function. If the opening is specified simply as storeroom, the Accentra 8805FL is a Grade 1 storeroom mortise lock from the 8800 Series supplied with an Arcadia lever, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset for 1-3/4 inch doors with an interchangeable core option. The Cal-Royal NM8080 shares the 1-3/4 inch door thickness the 45H is standard-configured for, while the 45H also offers a thick door configuration up to 5 inches when specified at the time of order.
7) Is the Sargent 4874 mortise deadbolt a substitute for the BEST 45H?
No. They share a 2-3/4 inch backset, but the Sargent 4874 is a double cylinder mortise deadbolt in the 4870 Series, a deadbolt-only body with no latchbolt and no lever trim. The BEST 45H is a full mortise lockset with a 3/4 inch latchbolt in addition to its 1 inch deadbolt, single cylinder keying, and lever or knob trim on roses. If you only need a deadbolt on the door, the 4874 will serve; if the door also needs to latch and be operated by a lever, it will not. The Kaba Ilco 185 Series is likewise a deadbolt function mortise lock, supplied non-handed.
8) Can I use a Baldwin 6310 mortise lock in place of the BEST 45H?
Only if the door is prepped for it. The Baldwin 6310 is an entrance/storeroom mortise lock body on a 2-1/2 inch backset for doors 1-3/8 inch and over, offered knob by knob, with a lever by lever version as the 6301LS in entrance/apartment function. The BEST 45H uses a 2-3/4 inch backset, so the two are not a drop-in swap in an existing mortise pocket without re-prep. The 45H is also built for commercial duty with an 8 inch by 1-1/4 inch stainless, brass or bronze faceplate and SFIC prep less core.
9) For a behavioral health or ligature-resistant opening, what replaces the BEST 45H?
The 45H is offered with knobs and levers on roses, which is not appropriate where ligature resistance is required. The TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in stainless steel, passage function, for 1-3/4 inch doors, and the MRX-A-01 is the same passage function with satin stainless ligature resistant arch trim. 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. All three are passage function, so plan separate hardware where the opening must also be secured.
10) I need the BEST 45H opening to be electrically controlled from the access control system. What mortise lock does that?
The 45H is a mechanical lock with no electronics. For an electrified mortise opening, the Command Access ML190 is a heavy duty motorized mortise lock in storeroom function with field selectable fail safe or fail secure operation on 24VDC, and the Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit, running on 12/24VDC for 1-3/4 inch doors. Field selectable EL/EU on the ML190 lets you set the failure mode after the door is hung; the Schlage unit is ordered as the EU configuration.
11) What is the antimicrobial finish option on the BEST 45H, and where does it make sense?
Two finishes carry the BEST UltraShield coating: 626AM satin chrome and 630AM satin stainless. The coating inhibits growth of bacteria and other microbes on the hardware surface. BEST recommends it where cleanliness is a priority, so hospital and healthcare, elderly care, education, transportation, food service and hospitality. On a standard office or warehouse opening plain 626 or 630 does the same mechanical job.
12) What does Universal function mean on the BEST 45H, and how is it different from a storeroom lock?
Universal deadbolt function means the lock carries both a keyed deadbolt and a latchbolt with lever trim, keyed one side (single cylinder). It covers openings where you want a separate deadbolt throw as well as day-to-day latching. If all you need is a door that stays locked outside and always free egress with no deadbolt, a straight storeroom mortise like the Accentra 8805FL or Cal-Royal NM8080 is the simpler order.
13) Is the BEST 45H an electronic or access control lock?
No, it's purely mechanical. Key and lever operation only, no wiring, no power, no credential reader. If the opening needs card or keypad access on a mortise prep, the electronic options are different products entirely, for example the TownSteel FME-2000 Series with RFID, the Schlage CO-100 standalone keypad mortise, or the Dormakaba E-Plex 2066 pushbutton mortise.
14) How does the BEST 45H hold up in high traffic, and what stops lever droop?
It's a heavy duty commercial lock. Case, cover and armored front are 0.095 inch cold rolled steel with zinc dichromate plating for corrosion resistance, held with four case cover screws at the corners plus an interlocking armored front and cover at the latch. The hub runs on roller bearings, and the trim carries a lever return spring specifically to fight droop, which is the usual failure on high-cycle lever openings.
15) Does the BEST 45H meet accessibility requirements for lever operation?
BEST states the design and operation of the 45H mortise lock meets the intent of ANSI A117.1 section 404.2.6, the accessible door hardware operation clause. Specify a lever style rather than the 4 round knob if accessibility is the driver, since knobs require grasping and twisting.
16) Which rose size should I pick to cover an old prep on the door face?
Three roses are offered on the 45H: H flat 2-3/4 inch, R concave 2-3/4 inch, and S flat 3-1/2 inch. If you're replacing older trim and there is scarring or an oversized hole around the hub, the S at 3-1/2 inches gives you the most coverage. H and R are the same 2-3/4 inch diameter and differ only in profile, flat versus concave.
17) If the opening does not need to lock at all, is there a simpler alternative to the BEST 45H?
Yes. The 45H is a keyed single cylinder lock with a 1 inch deadbolt throw, which is more lock than a corridor or closet door needs. For a non-latching-security opening, the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, the Falcon MA101 is a Grade 1 heavy duty fire rated mortise passage lock with field reversible operation, and the Hager 3810S is a Grade 1 passage mortise lock with rose trim and a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inches. The Hager 3810S matches the 45H on both rose trim and the 2-3/4 inch backset, so the door prep intent is the same.
18) What is the difference between the BEST 45H and the Sargent 7925 for a dormitory or corridor opening?
Both are Grade 1 heavy duty mortise locks supplied with rose trim and a single cylinder deadbolt. The Sargent 7925 is factory-set to the dormitory exit function in the 7900 Series, so the function is fixed when you order. The BEST 45H is a universal function lock body with a four position hub toggle and a latch reversible 180 degrees without opening the case, so handing and configuration are set in the field. The 45H also publishes a 2-3/4 inch backset, an 8 inch by 1-1/4 inch faceplate, and SFIC prep less core, which matters if the building is keyed on small format interchangeable cores.
19) For a privacy bed or bath door, what should I order instead of the BEST 45H?
The 45H is a keyed universal function lock and is not the right fit for a privacy opening. 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 with a 2-3/4 inch backset for doors 1-3/4 to 2 inches. The Hager 3840S carries the same 2-3/4 inch backset the 45H uses, so the door prep centerline is unchanged.
20) Are the Emtek mortise entrance locksets comparable to the BEST 45H?
They serve a different purpose. The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan mortise entrance locksets are dummy function, meaning they are non-operating trim with no latch or bolt. The BEST 45H is a working commercial lock with a 3/4 inch latchbolt, a 1 inch deadbolt and a keyed single cylinder. Use a dummy set only on an inactive leaf. Schlage also offers the L0170 half dummy trim as a Grade 1 heavy duty non-keyed mortise lever option for 1-3/4 inch doors.
21) What is the closest Grade 1 office or entrance mortise lock to the BEST 45H when the spec calls out office function?
The Cal-Royal NM8050 is a Grade 1 heavy duty office/entrance mortise lockset with auxiliary deadlatch for 1-3/4 inch doors. The Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon, non-keyed, on a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inches. The 3850E matches the 45H backset at 2-3/4 inches but uses escutcheon trim, while the 45H is supplied with rose trim in 2-3/4 inch flat, 2-3/4 inch concave or 3-1/2 inch flat.
22) For a healthcare corridor where cleanability matters, how does the BEST 45H compare to the alternatives?
The BEST 45H is offered in 626AM satin chrome antimicrobial and 630AM satin stainless antimicrobial with the UltraShield coating, which inhibits growth of bacteria and other microbes on the hardware surface, alongside its standard finishes such as 605 bright brass, 613 oxidized satin bronze and 690 dark bronze. Among mortise alternatives for healthcare, the Marks USA 5PDN is a Grade 1 hospital passage push/pull paddleset in satin stainless steel that is ligature resistant and ADA compliant, but it is passage function only. If the corridor must also be keyed, the 45H is the one of the two that is keyed with a single cylinder.
23) Can someone pull the cylinder off a BEST 45H to defeat it?
The cylinder rings are solid machined with a wavy washer behind them to resist wrenching, and a cylinder security screw means the cylinder can't be removed until the interchangeable core comes out first. That's part of why the drill resistant core option is what lifts the 45H from Grade 2 to Grade 1 Security.
How fast can I get the BEST 45H7UNAB15H626 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 45H7UNAB15H626 come with a warranty?
Absolutely. The BEST 45H7UNAB15H626 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 45H7UNAB15H626?
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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