BEST 45H Series Heavy Duty Mor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$539.00
$363.33
BEST 45H Series Heavy Duty Mortise Lock Body - Classroom Function with Field Reversible Operation

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

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Model: 45HCAR626
$539.00
$363.33
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$539.00
$363.33
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BEST 45H Series Heavy Duty Mortise Lock Body - Classroom 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 classroom function operation for commercial door applications. This field reversible lock body features a 2-3/4" backset and accommodates doors 1-3/4" thick with options for thick door configurations up to 5" thick. Constructed from 0.095" cold rolled steel with zinc dichromate plating for corrosion protection, this ANSI A156.13 Grade 1 Operation and Strength rated lock provides reliable security for demanding commercial environments.

Professional Features & Benefits

  • Heavy-Duty Steel Construction: 0.095" cold rolled steel case, cover, and armored front with zinc dichromate plating provides exceptional durability and corrosion resistance for commercial applications.
  • Field Reversible Design: Reversible latch rotates 180 degrees for easy handing change without opening case, and four position hub toggle design allows configuration changes without disassembly.
  • Enhanced Security Features: Solid machined cylinder rings with wavy washer provides resistance to cylinder wrenching, plus cylinder security screw prevents core removal without proper access.
  • Superior Latch Performance: Solid one-piece stainless steel anti-friction latch provides 50% more surface contact with strike for superior strength and precision-engineered curve for enhanced cycle life.
  • Armored Front Protection: Completely surrounds latch and deadbolt providing increased lateral strength with staked assembly design for self-alignment during installation.
  • Roller Bearing Operation: Roller bearing hub mechanism provides smooth, wear resistant operation with lever return spring mechanism in trim for enhanced protection against lever droop.
  • Grade 1 Performance: ANSI A156.13 Series 1000 Grade 1 Operation and Strength rating with Grade 2 Security for professional commercial applications.
  • Antimicrobial Finish Options: Available with UltraShield antimicrobial protected coating (626AM and 630AM finishes) for healthcare, education, and food service 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 thick door up to 5"), 2-3/4" backset, and handing as applicable to this mortise lock body.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper mortise preparation.
  3. Prepare door by cutting mortise pocket to accommodate 5-7/8" H x 7/8" D x 4-1/16" W case dimensions and route for 8" H x 1-1/4" W faceplate.
  4. Install lock body into prepared mortise and secure with mounting hardware per manufacturer torque specifications, utilizing self-aligning trim mechanism for accurate positioning.
  5. Configure four position hub toggle for desired operation (always locked, always unlocked, or locked by key) and verify locking toggle indication shows proper "locked" and "unlocked" states.
  6. Test lock operation including latch and deadbolt function, verify 3/4" latch throw and 1" deadbolt throw, and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

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

Why Choose BEST Quality?

BEST 45H Series mortise locks deliver professional-grade reliability with heavy-duty 0.095" cold rolled steel construction and ANSI A156.13 Grade 1 Operation and Strength rating. The solid one-piece stainless steel anti-friction latch provides 50% more surface contact for superior strength, while roller bearing hub mechanisms ensure smooth, wear-resistant operation. Engineered for demanding commercial applications where dependable classroom function security and field serviceability are 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 Lock Body
Subcategory:
Mortise
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Mortise
Lock Function:
Classroom
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Classroom
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 45HCAR626 – Frequently Asked Questions

1) What does classroom function mean on a BEST 45H mortise lock, and how does it work day to day?
Classroom function on the 45H means the outside lever is locked and unlocked by key only; there is no inside pushbutton or turn to lock. A teacher keys the outside trim to lock it and leaves the room secure, while the inside lever always retracts the latch for free egress. The 45H is a single cylinder, keyed lock body, so the key work happens on one side only. The four position hub toggle on the case lets you set the lock always locked, always unlocked, or locked by key, and there's a toggle indication showing locked and unlocked states.
2) Will the BEST 45H mortise lock fit a 1-3/4 inch door, and what about thicker doors?
Standard 45H lock bodies are built for 1-3/4 inch doors, which is the usual commercial door thickness. For anything heavier, BEST makes a thick door configuration good up to 5 inches, but you have to specify the actual door thickness when you order; it isn't something you can change in the field. Measure the door before ordering.
3) Do I have to order the BEST 45H mortise lock handed, or can I change the hand on site?
Handing is a required selection when ordering (right hand, left hand, right hand reverse bevel, or left hand reverse bevel), but the 45H lock body is field reversible. The latch rotates 180 degrees to change hand without opening the case, and the hub toggle is reconfigurable without disassembly. Order it to the opening you have; if the door gets rehung later you aren't buying another lock.
4) Does the BEST 45H come with a cylinder or core?
No core is included. The 45H ships with SFIC prep less core, meaning the lock is machined for a BEST small format interchangeable core but you supply the core keyed to your system. That's the point of it for a facility running its own keyway: order the bodies, then pin and drop your own cores so the building stays on one key system. Budget for cores separately, plus the trim, since this is the lock body only.
5) What mortise pocket and door prep does the BEST 45H lock body need?
Cut the pocket for a case measuring 5-7/8 x 7/8 x 4-1/16 inches and route the edge for a faceplate of 8 inches H x 1-1/4 inches W x 1/16 inch T. Backset is 2-3/4 inches, which is the standard mortise backset, so a door already prepped for a commercial mortise lock is usually a straight fit. The lock face self-adjusts to the correct bevel during installation, so you don't need to order a beveled front for a beveled door edge.
6) Will the BEST 45H latch into the strike that's already in my frame?
The latchbolt throws 3/4 inch and the deadbolt throws a full 1 inch, both stainless steel, off a 2-3/4 inch backset. Those are the standard commercial mortise numbers, so an existing ANSI mortise strike prep in the frame will generally take it. The deeper 1 inch deadbolt is the thing to check: if the old lock threw less, confirm the strike box behind the frame is deep enough to clear a full inch before you hang the door.
7) Is the BEST 45H mortise lock Grade 1?
It carries ANSI A156.13, Series 1000, Grade 1 Operation and Strength, with Grade 2 Security. If your spec calls for Grade 1 Security as well, the 45H gets there only with a drill resistant core (1CD, 1CDP, 1CDF, or 1CDX) behind escutcheon trim, or a 1EK7K4 high security cylinder with sectional trim. The 47H Series is the one rated Grade 1 for Operational, Strength, and Security out of the box. The 45H design also meets the intent of ANSI A117.1 section 404.2.6.
8) What do I have to specify when ordering a BEST 45H lock body besides the finish?
Three choices beyond finish are required. Handing (RH, LH, RHRB, or LHRB). Security head screws, yes or no, if you want tamper resistant fasteners on the opening. And the 7/8 inch lip to center strike, yes or no, which you want when the frame or stop condition needs the shorter strike lip rather than the standard package. Door thickness also has to be called out if the door is anything over 1-3/4 inches. Trim and the core are separate orders.
9) What are the AM finishes on the BEST 45H, and are they worth it for a hospital or school?
626AM is satin chrome and 630AM is satin stainless, both with the UltraShield antimicrobial protected coating that inhibits growth of bacteria and other microbes on the hardware surface. BEST recommends them where cleanliness is a priority: hospital and healthcare, elderly care, education, transportation, food service, hospitality. Mechanically they're the same lock as plain 626 and 630, so if the openings are back of house you can mix and put AM only on patient rooms or classrooms.
10) What finishes does the BEST 45H mortise lock come in for matching the rest of my building?
Fifteen finishes, covering brass (605 bright, 606 satin), bronze (611 bright, 612 satin, 613 oil rubbed, 690 statuary dark bronze), nickel (618 bright, 619 satin), matte black 622, chrome (625 bright, 626 satin), and stainless (629 bright, 630 satin), plus the antimicrobial 626AM and 630AM. Two behave differently over time on purpose: 613 is meant to wear to an antique look, and 690 stays a dark brown. For a fleet of doors that has to stay uniform for years, the plated and coated finishes like 626 or 630 hold their appearance; don't mix 613 into a run you want matching.
11) Should I use a mortise lock like the BEST 45H or a cylindrical lever on my classroom doors?
A mortise lock goes in a pocket routed into the door edge rather than through a couple of bored holes, and it gives you a separate 1 inch deadbolt alongside the 3/4 inch latch in one case. That's what you want on high traffic classroom and institutional openings where the door sees constant use and you need real deadbolt security at night. The tradeoff is prep: a door already bored for a cylindrical lock can't take the 45H without being mortised, so on a retrofit where the doors are bored, a cylindrical lever is the simpler swap. New doors, or doors already carrying a mortise lock, are where the 45H fits without extra millwork.
12) Is the BEST 45H an electronic or access control lock?
It's fully mechanical, keyed, no electronics and no wiring. If your project needs credential based access, card readers, or a lock that reports status to a head end, this isn't it. What you do get is the hub toggle for changing how the opening behaves without a power supply behind it, which is why these hold up in buildings where the door has to keep working when the power drops.
13) How durable is the BEST 45H case for a high traffic commercial opening?
Heavy duty, and the construction backs it: case, cover, and armored front are 0.095 inch cold rolled steel with zinc dichromate plating for corrosion resistance. The armored front wraps both the latch and the deadbolt for lateral strength. The latch itself is a solid one piece stainless steel anti-friction design with 50 percent more strike contact, running on a roller bearing hub, and the trim carries a lever return spring to fight lever droop, which is the usual failure you see on school and dorm doors after a few years.
How fast can I get the BEST 45HCAR626 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 45HCAR626 come with a warranty?
Absolutely. The BEST 45HCAR626 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 45HCAR626?
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 45HCAR626 from ZenSupply?
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