BEST 45HCA Heavy Duty Mortise ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$584.00
$413.58
BEST BEST 45HCA Series (TD - Dormitory Function) - Heavy Duty Mortise Lockbody Only, Field Reversible 45HCATD

BEST 45HCA Heavy Duty Mortise Lock Body with Dormitory Function

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Model: 45HCATD626
$584.00
$413.58
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$584.00
$413.58
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BEST 45HCA Heavy Duty Mortise Lock Body with Dormitory Function

Professional-Grade Mortise Lock Solution for Commercial Applications

The BEST 45HCA Series mortise lock body delivers heavy-duty performance with dormitory function capability for commercial and institutional applications. This field-reversible lock body features a solid one-piece stainless steel anti-friction latch with 1" deadbolt throw and 3/4" latchbolt throw, designed for 1-3/4" thick doors with 2-3/4" backset. Manufactured from 0.095" cold rolled steel with zinc dichromate plating for enhanced corrosion protection and durability.

Professional Features & Benefits

  • Heavy-Duty Construction: 0.095" cold rolled steel case with zinc dichromate plating provides exceptional durability and corrosion resistance for demanding commercial environments.
  • Enhanced Latch Design: Solid one-piece stainless steel anti-friction latch provides 50% more surface contact with strike for superior strength and security with oil-impregnated operation.
  • Field Reversible Operation: Reversible latch rotates 180 degrees for easy handing change without opening case, with four position hub toggle design for flexible configuration.
  • Armored Front Protection: Completely surrounds latch and deadbolt providing increased lateral strength with staked assembly design for self-alignment during installation.
  • Roller Bearing Mechanism: Smooth, wear-resistant operation with lever return spring mechanism located in trim for enhanced protection against lever droop.
  • ANSI Grade 1 Compliance: Meets ANSI A156.13 Series 1000 Grade 1 Operation and Strength, Grade 2 Security standards for commercial applications.
  • Cylinder Security Features: Solid machined cylinder rings with wavy washer provides resistance to wrenching, with security screw preventing cylinder removal without core removal.
  • Visual Lock Indicators: Clear indication of locked and unlocked states with optional padlock icon indicators for enhanced user awareness.

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 and faceplate positioning.
  3. Prepare door mortise pocket to accommodate 5-7/8" H x 7/8" D x 4-1/16" W case dimensions and route for armored front installation.
  4. Install lock body in mortise pocket and secure with four case cover screws at each corner, ensuring armored front self-aligns with door bevel during installation.
  5. Configure four position hub toggle settings to determine locked/unlocked operation for each hub and verify field reversible latch orientation matches door handing.
  6. Test lock operation including latchbolt and deadbolt function, cylinder operation, and visual indicators to verify proper installation and smooth operation throughout full range of motion.

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

Antimicrobial Finish Options

BEST UltraShield antimicrobial protected coating available in 626AM satin chrome and 630AM satin stainless steel finishes. The UltraShield finish inhibits the growth of bacteria and other microbes on hardware surfaces, recommended for healthcare, elderly care, education, transportation, food service, and hospitality applications where product cleanliness is a high priority.

Why Choose BEST Quality?

BEST 45HCA Series mortise locks deliver professional-grade reliability with 0.095" cold rolled steel construction and solid stainless steel components rated for heavy-duty commercial applications. Protected by multiple patents including precision-engineered latch design and roller bearing hub mechanism for enhanced cycle life. Engineered for demanding institutional environments where dependable security and smooth operation 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:
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 45HCATD626 – Frequently Asked Questions

1) What does the dormitory function on a BEST 45HCA mortise lock actually do at the door?
Dormitory function means the outside lever is locked or unlocked by key, and the deadbolt is thrown by key from outside or by the inside turn. The inside lever always retracts both bolts for free egress. It is a single-cylinder setup, so there is no key cylinder on the room side. That is why it lands in student housing, apartments, patient rooms and hotel guest rooms, where the occupant wants a positive deadbolt but staff needs key access.
2) Will the BEST 45HCA mortise lock fit a 1-3/4 inch door with a 2-3/4 inch backset?
Yes, that is the standard configuration. The 45HCA is built for 1-3/4 inch doors on a 2-3/4 inch backset, which is the normal commercial mortise prep. The case measures 5-7/8 H x 7/8 D x 4-1/16 W, so the mortise pocket has to take those dimensions, and the faceplate is 8 x 1-1/4 x 1/16 inches. For anything thicker, a thick door configuration covers doors up to 5 inches, and the thickness has to be specified when ordering.
3) Do I have to order the BEST 45HCA handed, or can I reverse it in the field?
You pick a hand when you order (RH, LH, RHRB or LHRB), but you are not stuck with it. The latch is reversible without opening the case, rotating 180 degrees, and the hub uses a four position toggle, so a hand change on site does not mean a new lock body. Useful when the door swing on the drawing turns out backwards from what got built.
4) Does the BEST 45HCA come with levers, trim or a cylinder core?
No. This is the lock body only. Trim (levers or knobs, roses or escutcheons) is ordered separately, and the lock is prepped for a BEST small format interchangeable core but ships less core, so the core has to come from your keying order or your existing SFIC stock. Worth noting the lever return spring lives in the trim, not the body, so the trim you pick is what keeps the lever from drooping.
5) Will my existing BEST small format interchangeable cores work in the 45HCA?
The 45HCA is prepped for SFIC and supplied without a core, so it drops into an existing BEST SFIC masterkey system using the cores and keyway you already run. That is the usual reason a campus or apartment portfolio stays on BEST: one control key pulls cores across the whole property. Keep in mind it is single cylinder, so you are keying one core per opening.
6) What ANSI grade is the BEST 45H mortise lock rated for?
ANSI A156.13, Series 1000, Grade 1 for Operation and Strength, Grade 2 for Security as supplied. To reach Grade 1 Security you have to spec a drill resistant core (1CD, 1CDP, 1CDF or 1CDX) with escutcheon trim, or a 1EK7K4 high security cylinder with sectional trim. If your facility spec calls out Grade 1 across the board including security, that core selection is not optional. The design also meets the intent of ANSI A117.1 section 404.2.6.
7) Will the BEST 45HCA latch into the strike that is already in my frame?
The latchbolt throws 3/4 inch and the deadbolt throws a full 1 inch, on a 2-3/4 inch backset, so it needs a frame prep cut for a mortise lock with a deadbolt pocket, not just a latch strike. If you are replacing another mortise lock in an existing ANSI mortise prep, the geometry lines up; if the frame only has a cylindrical latch strike, the frame needs new prep. There is also a 7/8 inch lip to center strike option to order when the frame condition calls for it.
8) Should I use a mortise lock like the BEST 45HCA or a cylindrical lever for dorm and apartment doors?
A mortise body buys you a separate 1 inch deadbolt and a heavier case in one prep, which is what makes it the pick for dorm rooms, apartments and guest rooms where the occupant wants real deadbolt security. A cylindrical lever is a simpler bored prep and a faster install, but it gives you a latch only. The tradeoff is the door: the mortise needs a routed pocket for a 5-7/8 x 7/8 x 4-1/16 case, so it is a decision you make at the door spec stage, not a field swap onto a bored door.
9) What finishes does the BEST 45HCA mortise lock come in, and which ones hold up in a healthcare or food service setting?
Fifteen finishes: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 oil rubbed satin bronze, 618 bright nickel, 619 satin nickel, 622 matte black, 625 bright chrome, 626 satin chrome, 626AM satin chrome antimicrobial, 629 bright stainless, 630 satin stainless, 630AM satin stainless antimicrobial, and 690 statuary dark bronze. The two AM finishes carry the BEST UltraShield coating, which inhibits growth of bacteria and other microbes on the surface, and that is the pair to spec for hospitals, elderly care, education, transportation, food service and hospitality. Note that 613 is meant to wear to an antique look over time, so it is a poor choice where you need every door to match years from now.
10) Is the BEST 45HCA tough enough for a high traffic dorm or apartment corridor?
It is a heavy duty commercial lock body: 0.095 inch cold rolled steel case with zinc dichromate plating for corrosion protection, a solid one-piece stainless steel anti-friction latchbolt that is oil impregnated, roller bearing hub, and stainless steel deadbolt and auxiliary bolt. The armored front wraps both the latch and the deadbolt for lateral strength. That construction plus the ANSI A156.13 Grade 1 Operation and Strength rating is what carries it through student housing turnover cycles.
11) What do I need to specify when ordering a BEST 45HCA mortise lock body?
Four things beyond the finish. Handing (RH, LH, RHRB or LHRB), whether you want security head screws, whether you need the 7/8 inch lip to center strike, and door thickness if the door is thicker than the standard 1-3/4 inches (a thick door configuration goes up to 5 inches). Trim and the SFIC core are separate line items. If your spec demands Grade 1 security rather than Grade 2, the drill resistant core or high security cylinder gets specified too.
12) How much of the door does the BEST 45HCA faceplate cover, and will it match my existing mortise locks?
The faceplate runs 8 inches by 1-1/4 inches by 1/16 inch thick, in stainless steel, brass or bronze depending on finish. That is the standard ANSI mortise faceplate footprint, so replacing another mortise lock in the same prep usually leaves no exposed routing. The face also self-adjusts to the door bevel during installation, which saves shimming on beveled edge doors.
13) Can I add an electric strike or electrified function to the BEST 45HCA?
The 45HCA is a mechanical lock body with no electrified option, so access control has to come from elsewhere in the opening. If your dorm or apartment project needs credential access at the door, that is a different lock body or an electrified frame component, not a field modification to this one.
How fast can I get the BEST 45HCATD626 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 45HCATD626 come with a warranty?
Absolutely. The BEST 45HCATD626 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 45HCATD626?
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 45HCATD626 from ZenSupply?
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