BEST 45H Series Heavy Duty Mor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$586.00
$363.09
BEST 45H Series Heavy Duty Mortise Lock Body - Storeroom Function with Field Reversible Operation

BEST 45H Series Heavy Duty Mortise Lock Body - Storeroom Function with Field Reversible Operation

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Model: 45HCAW626
$586.00
$363.09
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$586.00
$363.09
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BEST 45H Series Heavy Duty Mortise Lock Body - Storeroom Function with Field Reversible Operation

Professional Grade Mortise Lock Solution for Commercial Applications

The BEST 45H Series mortise lock body delivers heavy-duty performance with storeroom function operation for demanding commercial environments. This field reversible lock body features a 2-3/4" backset and accommodates doors 1-3/4" thick with options for doors up to 5" thick. Constructed from 0.095" cold rolled steel with zinc dichromate plating for corrosion protection, this lock meets ANSI A156.13 Series 1000 Grade 1 Operation and Strength standards.

Professional Features & Benefits

  • Heavy-Duty Steel Construction: 0.095" cold rolled steel case, cover, and armored front provide exceptional strength and durability for high-traffic commercial applications.
  • Field Reversible Design: Reversible latch rotates 180 degrees for easy handing change without opening the case, reducing installation time and inventory requirements.
  • Enhanced Security Features: Solid one-piece stainless steel anti-friction latch provides 50% more surface contact with strike for superior strength and security performance.
  • Roller Bearing Hub Mechanism: Provides smooth, wear-resistant operation with enhanced cycle life and reduced maintenance requirements.
  • Four-Position Hub Toggle: Determines whether each hub is always locked, always unlocked, or locked by key for flexible operation configuration.
  • Armored Front Protection: Completely surrounds latch and deadbolt providing increased lateral strength with self-aligning installation capability.
  • ANSI Grade 1 Compliance: Meets ANSI A156.13 Series 1000 Grade 1 Operation and Strength standards for commercial-grade performance.
  • 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), backset dimensions, and handing requirements.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper mortise preparation.
  3. Prepare door mortise cavity according to specifications for 5-7/8" H x 7/8" D x 4-1/16" W case dimensions and install strike box assembly.
  4. Install lock body in mortise cavity and secure with appropriate fasteners per manufacturer torque specifications.
  5. Configure four-position hub toggle settings to determine locked/unlocked operation for each hub based on application requirements.
  6. Test lock operation including latch and deadbolt function, verify proper alignment with strike, 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 precision-engineered components designed for demanding commercial applications. The solid stainless steel anti-friction latch and roller bearing hub mechanism provide enhanced cycle life with superior strength and security. Engineered for high-traffic environments where dependable performance and field serviceability are essential.

Product Specs

Series:
45H
Standard Cylinder:
SFIC Prep Less Core
Duty Level:
Heavy Duty
Keyed Function:
Double 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:
Storeroom
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Storeroom
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 45HCAW626 – Frequently Asked Questions

1) Does the BEST 45H storeroom mortise lock come with levers and trim, or is it just the lock body?
What ships is the 45HCA lock body only, field reversible, in the finish you select. Levers or knobs, roses or escutcheons, strike, and the core all get ordered separately. The case is prepped for a small format interchangeable core and comes less core, so you also need to supply or order the SFIC core to key it into your system.
2) Will the 45H mortise lock fit a 1-3/4 inch commercial 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 up to 5 inches, but that has to be called out by thickness at the time of order, so measure the door leaf before you buy rather than assuming the standard body will reach.
3) How does storeroom function actually work on a BEST 45H lock?
Storeroom means the outside lever or knob is always locked. Key retracts the latch for entry, and the inside always turns free for egress. There is no way to leave the outside side unlocked, which is why it goes on stock rooms, mechanical rooms, electrical closets and IT rooms where you never want the door left on passage. If you need a door that can be unlocked and left open during business hours, an office or entrance function is the one to order instead.
4) Do I have to specify handing on the BEST 45H, and can I change it later?
Handing is a required selection when you order: right hand, left hand, right hand reverse bevel, or left hand reverse bevel. That said, the latch is reversible in the field, it rotates 180 degrees without opening the case, so a lock that showed up the wrong hand can be corrected on the job instead of returned. For property managers stocking spares, that means one body covers openings of either hand.
5) Will the 45H latch into the strike that is already in my frame?
The latchbolt throws 3/4 inch and the deadbolt throws 1 inch, both stainless steel, with a non-handed stainless auxiliary bolt. Those are standard ANSI mortise throws, so an existing ANSI 4-7/8 inch mortise strike with the correct pocket depth will generally take it. Where frames sit off, BEST offers a 7/8 inch lip-to-center strike as an order option, which is the one to pick when the door is set back from the frame face and a standard lip will not reach.
6) Is the BEST 45H mortise lock Grade 1 for a spec that calls for ANSI A156.13 Grade 1 security?
Careful here. The 45H carries ANSI A156.13, Series 1000, Grade 1 for Operation and Strength, but Grade 2 for Security as standard. To hit Grade 1 Security you have to pair it with a drill resistant core (1CD, 1CDP, 1CDF or 1CDX) behind escutcheon trim, or a 1EK7K4 high security cylinder with sectional trim. If the spec calls for Grade 1 security out of the box, the 47H series is the one rated Grade 1 for Operation, Strength and Security.
7) What is the closest equivalent to the BEST 45H storeroom mortise lock from another manufacturer?
The BEST 45H mortise lock body is a Grade 1 storeroom function mortise lock with a 2-3/4 inch backset. The closest cross-brand equivalents on function and grade are the Accentra 8805FL, a Grade 1 storeroom mortise lock supplied with an Arcadia lever, and the Cal-Royal NM8080, a Grade 1 heavy duty storeroom mortise lockset offered with an interchangeable core option. The difference in scope matters when you order: the 45H is a lock body only, so trim is selected separately, while the 8805FL and NM8080 are catalogued as complete locksets with trim. The NM8080 is listed for 1-3/4 inch doors, whereas the 45H is built for 1-3/4 inch doors with a thick-door configuration available up to 5 inches.
8) Is the Baldwin 6310 storeroom mortise lock a drop-in substitute for the BEST 45H?
No. Both are mortise lock bodies with a storeroom-style function, but the mortise prep is different: the BEST 45H uses a 2-3/4 inch backset, while the Baldwin 6310 knob-by-knob entry/storeroom lock body and the 6310190RRLS right hand reverse lever-by-lever version both use a 2-1/2 inch backset. Swapping between them changes the cross-bore location relative to the door edge. The Baldwin bodies are listed for doors 1-3/8 inch and over, and the 45H is built for 1-3/4 inch doors with a thick-door configuration to 5 inches. The 45H is also field reversible, with a latch that rotates 180 degrees without opening the case, whereas the 6310190RRLS is ordered as a specific right hand reverse hand.
9) I need the storeroom function to be electrically controlled - what takes the place of the BEST 45H?
The BEST 45H is a mechanical storeroom lock body with no electrical option. For an access-controlled opening keeping the same storeroom behavior, the Command Access ML190 is a heavy-duty motorized mortise lock with storeroom function and field selectable electrically locked or electrically unlocked operation on 24VDC. The Schlage 03A electric lock/unlock outside lever mortise lock is another route, a heavy duty corridor function unit keyed on the outside with request to exit and 12/24VDC operation, listed for 1-3/4 inch doors. The ML190 keeps the storeroom function designation; the Schlage unit is a corridor function, so confirm which behavior the door schedule calls for.
10) Which BEST 45H finish should I use in a hospital or long-term care facility?
Two antimicrobial options are built for that: 626AM satin chrome and 630AM satin stainless steel, both with the UltraShield coating that inhibits bacteria and microbe growth on the hardware surface. BEST calls those out for hospital and healthcare, elderly care, education, transportation, food service and hospitality. If antimicrobial is not a requirement, plain 626 and 630 are the same finishes without the coating.
11) I need the storeroom door to lock and unlock from an access control system. Is the 45H the right lock?
No. The 45H is a mechanical body with no electrified option, so nothing on it will take a signal from a card reader or access panel. For an electrified mortise on the same kind of opening, the Command Access ML190 Series is a heavy duty motorized storeroom-function mortise lock with field selectable fail secure or fail safe operation on 24VDC. If you want the credential reader in the lock itself rather than wired back to a panel, the Schlage LEMD-GRW is a Grade 1 ENGAGE wireless mortise lock with a 125kHz proximity reader.
12) I do not need a keyed lock on this door - what non-keyed mortise options are there instead of the 45H?
The BEST 45H is a keyed mortise lock with a storeroom function and an SFIC prep less core. For an opening that only needs free operation from both sides, 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 3810S is a Grade 1 passage mortise lock with rose trim and a 2-3/4 inch backset, matching the 45H backset. For bed and bath openings the Hager 3840S is a Grade 1 privacy mortise lock, also 2-3/4 inch backset, and the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with a deadbolt.
13) Can I replace the BEST 45H with an electronic mortise lock on the same door?
The BEST 45H is a mechanical, non-electronic lock body with a four-position hub toggle for setting each hub locked, unlocked, or locked by key. If the opening is moving to credential-based access, the Schlage CO-100 is a Grade 1 standalone electronic mortise lock with a keypad reader for 1-3/4 inch doors, the TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID for 1-3/4 inch doors, and the Dormakaba E-Plex E5086 is a Grade 1 electronic pushbutton and card mortise lock in a back-to-back configuration. Note the door thickness range before you swap: the Alarm Lock Trilogy DL3500CR is a Grade 1 electronic mortise lock listed for 1-5/8 to 1-7/8 inch doors, so it will not cover the thick-door range the 45H reaches with its up-to-5-inch configuration.
14) What mortise product looks like an alternative to the 45H but will not actually work as a storeroom lock?
Several mortise-family items share the word mortise without giving you a keyed latching function. The Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset, which matches the BEST 45H backset but provides only a bolt, no latch or lever operation. The Sargent 130KB and 130W are mortise thumbturns, standard duty trim pieces rather than lock bodies. The Emtek 3102 Memphis and 3106 Manhattan mortise entrance locksets are dummy function, so they do not latch at all. The Schlage L0170 is a Grade 1 half dummy trim. For a storeroom opening you need the keyed storeroom function the 45H provides.
15) For a behavioral health or ligature-resistant opening, what mortise lockset should I specify instead of the BEST 45H?
The BEST 45H is a general commercial heavy duty mortise lock body and is trimmed with conventional levers or knobs. For anti-ligature openings, the TownSteel MRX-L-01 is a Grade 1 heavy duty stainless steel anti-ligature lever mortise lockset with passage function for 1-3/4 inch doors, and the MRX-A-01 is the passage function version with satin stainless steel 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 they do not key-lock the door the way the 45H storeroom function does.
16) The door is an office or entrance opening rather than a storeroom - which mortise lock fits better than the 45H?
The BEST 45H is the storeroom function version, where the outside lever stays locked and the key retracts the latch. For an office opening where staff need to leave the outside lever unlocked during business hours, the Cal-Royal NM8050 is a Grade 1 heavy duty office/entrance mortise lockset with an auxiliary deadlatch for 1-3/4 inch doors, and the Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon, non-keyed, on a 2-3/4 inch backset matching the 45H. For a dormitory or corridor opening, the Sargent 7925 is a Grade 1 heavy duty dormitory exit function mortise lock with rose trim and a single cylinder deadbolt.
17) Does any comparable storeroom mortise lock take an interchangeable core like the BEST 45H?
The BEST 45H lock body comes prepped for a small format interchangeable core, shipped less core, so the facility's existing SFIC cores drop straight in. Among the cross-brand storeroom mortise locks, the Cal-Royal NM8080 is a Grade 1 heavy duty storeroom mortise lockset offered with an interchangeable core option. The Accentra 8805FL is also a Grade 1 storeroom mortise lock, supplied with the Arcadia lever. If you are standardizing a facility on one core system, matching the core prep across brands is the detail to confirm at order time.
18) What finishes does the BEST 45H mortise lock body come in, and will 613 and 690 stay looking the same?
Fifteen: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 oil rubbed bronze, 618 bright nickel, 619 satin nickel, 622 matte black, 625 bright chrome, 626 satin chrome, 626AM, 629 bright stainless, 630 satin stainless, 630AM, and 690 dark bronze. Two behave differently over time: 613 is meant to wear to an antique appearance, so do not expect it to stay uniform across a building, while 690 holds a dark brown look. For matching existing openings in a fleet, 626 and 630 are the usual commercial defaults.
19) What is the four-position hub toggle on the BEST 45H for?
It sets how each hub behaves: always locked, always unlocked, or locked by key. That is what lets one lock body be configured on the door during install rather than ordering a different case, and it is set before you close things up and test the latch and deadbolt against the strike. It works with the roller bearing hub mechanism, which is what carries the cycle life on high-traffic openings.
20) Can I order the BEST 45H with tamper-resistant fasteners for a detention or high-abuse area?
Yes, security head screws are a selectable option on the order, so you can spec them on openings where standard faceplate screws would get attacked. Combine that with the armored front, which wraps the latch and deadbolt for added lateral strength and self-aligns during installation, and the 0.095 inch cold rolled steel case that is zinc dichromate plated against corrosion.
How fast can I get the BEST 45HCAW626 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 45HCAW626 come with a warranty?
Absolutely. The BEST 45HCAW626 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 45HCAW626?
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
Why buy the BEST 45HCAW626 from ZenSupply?
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