BEST 45H Series Heavy Duty Mor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$584.00
$393.63
BEST 45H Series Heavy Duty Mortise Lock Body - Dormitory Function with Field Reversible Operation

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

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Model: 45HCATA626
$584.00
$393.63
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$584.00
$393.63
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BEST 45H Series Heavy Duty Mortise Lock Body - Dormitory Function with Field Reversible Operation

Professional Heavy Duty Mortise Lock Solution for Commercial Applications

The BEST 45H Series mortise lock body delivers Grade 1 operational and strength performance with dormitory function capability for commercial and institutional applications. This field reversible lock body features a 2-3/4" backset, solid stainless steel components, and 0.095" cold rolled steel case construction rated for heavy duty use. ANSI A156.13 Series 1000 Grade 1 certified with enhanced security features and antimicrobial finish options available.

Professional Features & Benefits

  • Heavy Duty Construction: 0.095" cold rolled steel case, cover, and armored front provide exceptional durability for demanding commercial applications.
  • Enhanced Latch Design: Solid one-piece stainless steel anti-friction latch offers 50% more surface contact with strike for superior strength and security.
  • Field Reversible Operation: Reversible latch rotates 180 degrees for easy handing change without opening case, plus four position hub toggle design for flexible configuration.
  • Roller Bearing Hub Mechanism: Provides smooth, wear-resistant operation for extended service life in high-traffic environments.
  • Armored Front Protection: Completely surrounds latch and deadbolt providing increased lateral strength with self-aligning installation capability.
  • Enhanced Case Integrity: Four corner case cover screws plus interlocking armored front and cover design at the latch for maximum security.
  • ANSI Grade 1 Certification: Meets ANSI A156.13 Series 1000 Grade 1 Operation and Strength, Grade 2 Security standards for commercial applications.
  • Antimicrobial Options: Available with UltraShield™ antimicrobial protected coating (626AM, 630AM) 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), mortise pocket dimensions, and handing requirements.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper backset alignment.
  3. Prepare door mortise pocket and drill required holes per manufacturer specifications, ensuring proper clearance for case dimensions of 5-7/8" H x 7/8" D x 4-1/16" W.
  4. Install lock body in mortise pocket and secure with appropriate fasteners, ensuring armored front self-aligns with door bevel during installation.
  5. Configure four position hub toggle settings for desired operation (always locked, always unlocked, or locked by key) and verify latch reversibility if handing change is required.
  6. Test lock operation including 1" deadbolt throw, 3/4" latchbolt operation, and cylinder function to verify proper installation and smooth operation. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Dormitory and Student Housing Facilities
  • Apartment and Multi-Unit Residential Buildings
  • Educational Institution Housing
  • Healthcare Facility Patient Rooms
  • Hotel and Hospitality Guest Rooms
  • Senior Living and Assisted Care Facilities
  • Commercial Office Building Private Offices

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 Series 1000 Grade 1 certification ensures consistent performance in high-traffic institutional environments. Enhanced features including roller bearing hub mechanism, armored front protection, and field reversible operation provide the dependable security and operational flexibility required for dormitory and multi-tenant applications.

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:
Dormitory
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Apartment/Dormitory
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 45HCATA626 – Frequently Asked Questions

1) Will the BEST 45H dormitory mortise lock fit a 1-3/4 inch door, and what if my doors are thicker?
Standard configuration on the 45H mortise lock body is built for 1-3/4 inch doors, which is the usual commercial thickness. For anything heavier, BEST builds a thick door configuration for doors up to 5 inches, but you have to state the actual door thickness on the order. It is not a field adjustment, so measure the slab before you buy.
2) What does the dormitory function on the BEST 45H actually do at the door?
Dormitory function is the apartment-style setup: the lock is keyed single cylinder, and the four position hub toggle lets you set the outside lever to always locked, always unlocked, or locked by key. Residents key in from the corridor, the inside lever always retracts the latch for egress, and staff can leave a unit unlocked during turnover without pulling the lock. That is why it lands in dorms, apartments, patient rooms, hotel guest rooms and private offices.
3) Do I have to specify handing when I order the BEST 45H lock body?
Yes, handing is a required selection: right hand, left hand, right hand reverse bevel, or left hand reverse bevel. That said, the lock is field reversible. The latch rotates 180 degrees to change handing without opening the case, so a wrong call on the order form is a five minute fix rather than a return.
4) Does the BEST 45H mortise lock come with a cylinder or core?
No core is included. The 45H is prepped for a BEST small format interchangeable core and ships less core, so you supply the SFIC core in your building's keyway and keying. It is also lock body only, so lever or knob trim, escutcheons or roses, and the core are all separate line items.
5) Will the 45H drop into an existing standard mortise pocket, and what is the backset?
Backset is 2-3/4 inches, the standard commercial mortise backset, and the case measures 5-7/8 H x 7/8 D x 4-1/16 W inches. The faceplate is 8 x 1-1/4 x 1/16 inches. If the existing pocket and face cutout match those numbers, it goes in; the armored front self-aligns to the door bevel during installation, so you do not have to order bevel-specific.
6) Will the BEST 45H latch and deadbolt work with the strike already in my frame?
The latchbolt throws 3/4 inch and the deadbolt throws a full 1 inch, so the strike box has to be deep enough for a one inch bolt. If you are replacing an older mortise lock with a shallow strike, plan on the strike package too. A 7/8 inch lip to center strike is available as an ordering option when the frame reveal calls for it.
7) Is the BEST 45H Grade 1, and what does it take to hit Grade 1 security?
The 45H is certified to ANSI A156.13, Series 1000, Grade 1 for Operation and Strength, and Grade 2 for Security as standard. To reach Grade 1 Security you need a drill resistant core (1CD, 1CDP, 1CDF or 1CDX) with escutcheon trim, or the 1EK7K4 high security cylinder with sectional trim. If your spec calls out Grade 1 security straight through, the 47H Series carries Grade 1 for operation, strength and security without the core upgrade.
8) Which BEST 45H finish should I pick for a hospital or senior living building?
For healthcare, elderly care, education, food service and hospitality, BEST offers two antimicrobial options: 626AM satin chrome and 630AM satin stainless, both with the UltraShield coating that inhibits bacterial and microbial growth on the hardware surface. Beyond those, the body is offered in 605, 606, 611, 612, 613, 618, 619, 622, 625, 626, 629, 630 and 690, so you can match whatever the rest of the building already wears.
9) Is the BEST 45H mortise lock ADA compliant for accessible openings?
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 requirement. Note that the lever or knob trim is what a buyer actually grips, and that is ordered separately from this lock body.
10) How durable is the BEST 45H for a high traffic dorm corridor?
Case, cover and armored front are 0.095 inch cold rolled steel, zinc dichromate plated against corrosion, with four corner case cover screws and an interlocking armored front and cover at the latch. The latchbolt is solid one-piece stainless, oil impregnated for anti-friction, and BEST cites 50 percent more surface contact with the strike than a conventional latch. The hub runs on roller bearings for wear resistance. It is rated heavy duty commercial.
11) Can I get tamper resistant screws on the BEST 45H, and is this lock electrified?
Security head screws are an ordering option, yes or no, worth taking in dorms and other environments where residents have time and tools. The 45H is a purely mechanical lock body, not electronic, so if you need access control at the opening you are looking at a different platform.
How fast can I get the BEST 45HCATA626 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 45HCATA626 come with a warranty?
Absolutely. The BEST 45HCATA626 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 45HCATA626?
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 45HCATA626 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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