BEST 45H Series Heavy Duty Mor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,391.00
$743.95
BEST BEST 45H Series (A - Office Function) - Escutcheon Trim Heavy Duty Mortise Lock, Single Keyed BES-45H-A-ES

BEST 45H Series Heavy Duty Mortise Lock with Office Function and Escutcheon Trim

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Model: 45H7A3J618
$1,391.00
$743.95
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,391.00
$743.95
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BEST 45H Series Heavy Duty Mortise Lock with Office Function and Escutcheon Trim

Professional Grade Mortise Lock Solution

The BEST 45H Series Heavy Duty Mortise Lock delivers commercial-grade security with office function operation and escutcheon trim design. This ANSI A156.13 Grade 1 mortise lock features a solid one-piece stainless steel anti-friction latch with 50% more surface contact, 2-3/4" backset, and 0.095" cold rolled steel construction. Designed for doors 1-3/4" thick with an 8" H x 1-1/4" W x 1/16" T stainless steel faceplate that automatically adjusts to proper bevel during installation.

Professional Features & Benefits

  • 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.
  • Heavy-Duty Construction: 0.095" cold rolled steel case, cover, and armored front with zinc dichromate plating for corrosion protection and exceptional durability.
  • Grade 1 Performance: ANSI A156.13 Series 1000 Grade 1 Operation and Strength, Grade 2 Security certification for demanding commercial applications.
  • Reversible Operation: Non-handed design with reversible latch that rotates 180 degrees for easy handing change without opening case, plus four position hub toggle design.
  • Enhanced Case Integrity: Four case cover screws at each corner plus interlocking armored front and cover design at the latch with roller bearing hub mechanism for smooth operation.
  • Self-Aligning Installation: Armored front self-aligns with door bevel during installation and trim mechanism provides fast, easy, and accurate installation.
  • Cylinder Security: Solid machined cylinder rings with wavy washer provides resistance to wrenching, plus cylinder security screw prevents removal without first removing interchangeable core.
  • Visual Lock Indication: Locking toggle includes clear indication of "locked" and "unlocked" states with optional padlock icon indicators.

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), stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for the 2-3/4" backset configuration.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for mortise lock installation.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications, utilizing the self-aligning trim mechanism.
  5. Adjust operational components including the four position hub toggle design for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function including locking toggle indication 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 solid stainless steel components rated for enhanced cycle life performance. ANSI A156.13 Grade 1 certification ensures dependable operation in demanding commercial applications. Engineered with roller bearing hub mechanisms and anti-friction latch technology where consistent, long-term performance is 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 Locks
Subcategory:
Mortise
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Mortise
Product Attribute:
Mortise Locks
Electronic:
No
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 45H7A3J618 – Frequently Asked Questions

1) What is the 45H Series A Office Function mortise lock designed for?
The 45H Series A Office Function lock provides single-keyed access with heavy-duty mortise construction. It's designed for commercial office doors where exterior key control and interior privacy override are required.
2) What door thickness and backset does this mortise lock accommodate?
Standard mortise locks typically fit 1-3/4" doors with 2-3/4" backset. Verify your door preparation matches the manufacturer's template before installation. Check door weight capacity requirements for proper operation.
3) How do I determine the correct handing for this mortise lock?
Stand on the side where the door swings away from you. If hinges are on the right, it's right-handed. If hinges are on the left, it's left-handed. Order the corresponding hand configuration.
4) What escutcheon trim options are available with this lock?
The lock includes office function escutcheon trim as specified. Trim styles may include lever handles or knobs depending on the configuration. Verify trim compatibility with your door preparation.
5) What grade rating does this heavy-duty mortise lock meet?
Heavy-duty mortise locks typically meet Grade 1 or Grade 2 ANSI/BHMA standards. Check the specific grade rating on the product specifications for cycle count and security requirements.
6) Does this lock meet fire door and accessibility code requirements?
Verify fire rating compatibility if installing on fire-rated doors. Check that operating force and hardware height meet ADA accessibility requirements. Consult local building codes for specific applications.
7) What components are included with the complete lock set?
Complete sets typically include the mortise lock body, escutcheon trim, strike plate, and mounting hardware. Keys are usually included with keyed functions. Verify all components before installation.
8) What door preparation is required for installation?
Mortise locks require a rectangular pocket mortised into the door edge and holes drilled for the cylinder and trim. Use the manufacturer's template for precise measurements and hole locations.
9) How do I maintain and adjust this mortise lock?
Lubricate moving parts with graphite or appropriate lock lubricant. Adjust latch and deadbolt projection as needed. Check strike alignment periodically. Avoid over-tightening trim screws which can bind operation.
10) What other 45H Series functions are available?
The 45H Series typically offers multiple functions including classroom, storeroom, entrance, and privacy configurations. Browse our door locks section for related functions and compatible hardware.
11) Can this lock be installed in exterior door applications?
Office function locks can be used on exterior doors where key access from outside and privacy override from inside are needed. Ensure proper weather sealing and verify finish durability for exterior exposure.
12) What should I check if the lock operates stiffly or binds?
Check door alignment and strike plate positioning. Verify the mortise pocket isn't too tight. Lubricate the lock mechanism. Ensure trim isn't over-tightened. Door sagging can cause binding issues.
How fast can I get the BEST 45H7A3J618 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 45H7A3J618 come with a warranty?
Absolutely. The BEST 45H7A3J618 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 45H7A3J618?
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 45H7A3J618 from ZenSupply?
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