BEST 45HCA Series Heavy Duty M...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$549.00
$369.44
BEST 45HCA Series Heavy Duty Mortise Lock with Classroom Holdback Function

BEST 45HCA Series Heavy Duty Mortise Lock with Classroom Holdback Function

(No reviews yet) Write a Review

Model: 45HCARHB626
$549.00
$369.44
Selected Finish is

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

$549.00
$369.44
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

BEST 45HCA Series Heavy Duty Mortise Lock with Classroom Holdback Function

Professional-Grade Mortise Lock Solution for Educational Facilities

The BEST 45HCA Series delivers heavy-duty mortise lock performance with specialized classroom holdback (RHB) functionality for educational and commercial applications. This field-reversible lockbody features a 2-3/4" backset, solid stainless steel anti-friction latch with 3/4" throw, and 1" deadbolt throw for enhanced security. Manufactured from 0.095" cold rolled steel with zinc dichromate plating, this ANSI A156.13 Grade 1 Operation and Strength rated lock provides superior durability for high-traffic institutional environments.

Professional Features & Benefits

  • Heavy-Duty Construction: 0.095" cold rolled steel case, cover, and armored front with zinc dichromate plating for exceptional strength and corrosion resistance.
  • 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.
  • 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 Hub Mechanism: Provides smooth, wear-resistant operation with enhanced case integrity through four corner case cover screws and interlocking design.
  • Visual Lock Indication: Clear indication of locked and unlocked states with optional visual indicator showing padlock icons for immediate status recognition.
  • ANSI Grade 1 Compliance: Meets ANSI A156.13 Series 1000 Grade 1 Operation and Strength requirements with Grade 2 Security rating for institutional applications.
  • Antimicrobial Finish Options: Available with UltraShield antimicrobial protected coating (626AM, 630AM) 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 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 to accommodate case dimensions of 5-7/8" H x 7/8" D x 4-1/16" W and route faceplate opening for 8" H x 1-1/4" W stainless steel faceplate.
  4. Install lockbody into mortise pocket ensuring armored front self-aligns with door bevel during installation and secure with appropriate fasteners.
  5. Configure four position hub toggle settings to determine locked/unlocked operation for each hub and adjust latch hand if needed using 180-degree rotation feature.
  6. Test lock operation including latchbolt and deadbolt function, visual indicators, and classroom holdback operation to verify proper installation and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Educational Facility Classrooms
  • Institutional Buildings
  • Healthcare Facility Patient Rooms
  • Commercial Office Buildings
  • Government and Municipal Buildings
  • Multi-Tenant Residential Properties
  • High-Security Commercial Applications

Antimicrobial Protection Option

Available with UltraShield antimicrobial protected coating in satin chrome (626AM) and satin stainless steel (630AM) finishes. The BEST UltraShield finish inhibits the growth of bacteria and other microbes on the surface of the hardware, recommended for applications where product cleanliness is a high priority including healthcare, education, food service, and hospitality environments.

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 engineered for demanding commercial applications. ANSI A156.13 Grade 1 Operation and Strength certification ensures dependable performance in high-traffic institutional environments where security and durability are essential. Advanced features like the roller bearing hub mechanism and anti-friction latch design provide enhanced cycle life and smooth operation for years of reliable service.

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 Holdback
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 45HCARHB626 – Frequently Asked Questions

1) What does the classroom holdback (RHB) function on the BEST 45HCA mortise lock actually do?
The 45HCA is a classroom holdback lock. Like a standard classroom function it is key-operated from the outside to lock or unlock the outside lever, with the inside lever always free to exit. The holdback part lets the outside latchbolt be held retracted by key so the door pushes open freely during class changes or deliveries, then keyed back to normal latching. It is a single-cylinder, keyed lock body.
2) What mortise pocket and faceplate prep do I need for a BEST 45HCA lock body?
The case measures 5-7/8 H x 7/8 D x 4-1/16 W, so the pocket has to clear that. The faceplate cutout is 8 x 1-1/4 x 1/16 inches. Backset is 2-3/4 inches, which is the standard mortise backset, so an existing ANSI mortise prep normally takes it without rework. The lock face self-adjusts to the door bevel during install.
3) Do I have to order the BEST 45HCA handed, or can I change the hand on site?
Handing is a required selection at order (RH, LH, RHRB or LHRB), but the lock body is field reversible. The latch rotates 180 degrees to change hand without opening the case, and the hub uses a four position toggle. So if a door gets rehung or the wrong hand shows up on site, the installer can correct it.
4) Will the 45HCA 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 pocket has to be deep enough for a 1 inch bolt, not just a latch. A standard ANSI mortise strike normally accommodates both. If your frame needs the deeper lip, a 7/8 inch lip-to-center strike can be added when ordering.
5) Does the BEST 45HCA come with a cylinder, trim and levers?
No. The 45HCA is a lock body only. It is prepped for a BEST small format interchangeable core and ships less core, so you supply the SFIC to match your keying. Levers, roses or escutcheon trim are also ordered separately. Plan on trim, core, and strike as separate line items to finish the opening.
6) Is the BEST 45H mortise lock Grade 1, and what does it take to get Grade 1 security?
The 45H Series meets ANSI A156.13, Series 1000, Grade 1 Operation and Strength with a Grade 2 Security rating as built. To reach 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 your spec calls for Grade 1 across operation, strength and security without those additions, the 47H Series carries all three.
7) Which finish should I pick for a hospital or school where surfaces get wiped constantly?
Two antimicrobial options are offered: 626AM satin chrome and 630AM satin stainless, both with the BEST UltraShield coating that inhibits growth of bacteria and other microbes on the hardware surface. BEST calls these out for healthcare, elderly care, education, transportation, food service and hospitality. If antimicrobial isn't required, 630 satin stainless is the common institutional standard.
8) What finishes does the BEST 45HCA mortise lock come in for matching existing doors?
Fifteen finishes in all: 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. Note that 613 is meant to wear to an antique look over time, so it won't stay uniform across a building; 690 holds its dark brown appearance.
9) Does the BEST 45HCA classroom lock meet accessibility requirements for a school?
The design and operation of the BEST mortise lock meets the intent of the standard for ANSI A117.1 section 404.2.6. Actual operable force and hardware shape also depend on the lever trim you pair with the body, since the 45HCA is the lock body alone.
10) Is the BEST 45HCA lock body electronic or does it need any wiring?
Purely mechanical. There is no electronic option on the 45HCA, no wiring, no power transfer hinge, nothing to fail when the building loses power. Key and lever operation only, which is why it holds up in high traffic institutional corridors.
11) How durable is the BEST 45HCA case for a high traffic corridor or dorm?
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 deadbolt for lateral strength, the hub runs on roller bearings, and the case is held with four corner screws plus an interlocking design. Latchbolt and auxiliary bolt are stainless steel. It is rated heavy duty commercial.
12) Can I get tamper resistant screws on the BEST 45HCA for a detention or high abuse area?
Yes, security head screws are a selectable option on the 45HCA when you order. Worth taking on dorms, restrooms, and any opening where the trim is exposed to tampering.
How fast can I get the BEST 45HCARHB626 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 45HCARHB626 come with a warranty?
Absolutely. The BEST 45HCARHB626 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 45HCARHB626?
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 45HCARHB626 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.
!