BEST 45H Series Heavy Duty Mor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,529.00
$983.89
BEST BEST 45H Series (G - Communicating Function) - Rose Trim Heavy Duty Mortise Lock, Double Keyed BES-45H-G-RS

BEST 45H Series Heavy Duty Mortise Lock with Rose Trim - Double Keyed Communicating Function

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Model: 45H7G15H613
$1,529.00
$983.89
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,529.00
$983.89
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BEST 45H Series Heavy Duty Mortise Lock with Rose Trim - Double Keyed Communicating Function

Professional Grade Mortise Lock with Enhanced Security Features

The BEST 45H Series Heavy Duty Mortise Lock delivers commercial-grade security with advanced engineering for demanding applications. This double keyed communicating function lock features a 2-3/4" backset, solid stainless steel anti-friction latch with 50% more surface contact, and 0.095" cold rolled steel construction. ANSI A156.13 Grade 1 Operation and Strength certified with Grade 2 Security rating for reliable performance in high-traffic commercial environments.

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: Case, cover, and armored front manufactured from 0.095" cold rolled steel with zinc dichromate plating for exceptional durability and corrosion protection.
  • Advanced Case Integrity: Four case cover screws at each corner plus interlocking armored front and cover design at the latch provide enhanced structural strength.
  • Roller Bearing Operation: Roller bearing hub mechanism delivers smooth, wear-resistant operation for long-term reliability in commercial applications.
  • Reversible Design: Non-handed cylinder retainer and reversible latch rotates 180 degrees for easy handing change without opening case, plus four position hub toggle design.
  • 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 Indicators: Clear indication of locked and unlocked states with optional padlock icon indicators - open for unlocked and closed/red for locked.

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 frame strike pocket according to specifications, ensuring proper clearances for latch and deadbolt operation.
  4. Install lock case in door mortise and secure armored front, allowing self-alignment with door bevel during installation process.
  5. Mount rose trim assemblies and connect to lock mechanism, utilizing self-aligning trim mechanism for accurate positioning and secure attachment.
  6. Test lock operation including latch retraction, deadbolt extension, key function, and lever return spring mechanism to verify proper alignment and smooth operation throughout full range of motion.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • High-Security Commercial Applications

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 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 Grade 1 Operation and Strength certification with enhanced anti-friction latch design provides superior durability and security. Multiple finish options including antimicrobial coatings ensure dependable performance where reliable access control is essential.

Product Specs

Series:
45H
Standard Cylinder:
SFIC Prep Less Core
Duty Level:
Heavy Duty
Keyed Function:
Double 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 45H7G15H613 – Frequently Asked Questions

1) What does the G communicating function do on a BEST 45H mortise lock?
The G function is a double keyed communicating lock: a key is required on both sides to operate the latchbolt, and there is no thumbturn. It is used on doors between two controlled spaces, like connecting hotel rooms or adjoining offices, where either side should only be opened with a key. Because it is double cylinder with no inside free egress, check your local egress code before putting it on a required exit door.
2) Does the BEST 45H come with a cylinder, or do I need to supply a core?
It ships prepped for a BEST small format interchangeable core but without the core, so you add your own SFIC to key it into your existing system. Worth knowing on the security rating: the 45H is A156.13 Grade 1 Operation and Strength with Grade 2 Security, and reaching Grade 1 Security requires a drill resistant core (1CD, 1CDP, 1CDF or 1CDX) with escutcheon trims, or the 1EK7K4 high security cylinder with sectional trims.
3) Do I have to specify handing when ordering a BEST 45H mortise lock?
No. The latch is reversible and rotates 180 degrees without opening the case, the cylinder retainer is non-handed, and the hub has a four position toggle. The auxiliary bolt is non-handed as well, and the armored front self-aligns to the door bevel during install. One lock covers all four hands, which is why it is a good stocking item for a maintenance shop.
4) Will the BEST 45H latch into the strike that is already in my frame?
The latchbolt throws 3/4 inch and the deadbolt throws a full 1 inch, both solid stainless steel. With a 2-3/4 inch backset and the standard ANSI faceplate size, it lines up with a typical ANSI mortise strike prep. A double keyed communicating lock does project the deadbolt, so the frame strike has to have a deadbolt pocket deep enough for the 1 inch throw, not just a latch lip.
5) What is a Grade 1 storeroom mortise lock alternative to the BEST 45H double keyed communicating lock?
The BEST 45H G function is keyed on both sides for communicating openings between two occupied spaces, so it is not a storeroom lock. If the opening needs storeroom operation - outside lever always locked, key retracts the latch - the Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series with an Arcadia lever, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset for 1-3/4 inch doors with an interchangeable core option. The NM8080's interchangeable core option is the closer match if you are already keying the 45H with its SFIC prep less core.
6) What is the difference between the BEST 45H double keyed mortise lock and a Sargent 4874 double cylinder mortise deadbolt?
Both are keyed from both sides on a 2-3/4 inch backset, but the 4874 in the Sargent 4870 Series is a deadbolt only - no lever trim, no latchbolt, so the door has no latching hardware of its own. The BEST 45H G is a complete lockset with lever or knob trim, a 3/4 inch throw stainless latchbolt and a 1 inch throw deadbolt in one case. Choose the 4874 when you are adding a keyed bolt above existing latching hardware, and the 45H when the lock has to both latch and secure the opening.
7) Can I use a Baldwin 6301 mortise lock body in place of the BEST 45H?
No - the backsets differ. The Baldwin 6301 entry/apartment mortise lock body is a 2-1/2 inch backset for doors 1-3/4 inch and over, available knob by knob or as the 6301LS lever by lever. The BEST 45H is a 2-3/4 inch backset, so the mortise pocket and cylinder centerline do not line up. Baldwin's 6310 entry/storeroom body is also 2-1/2 inch backset, for doors 1-3/8 inch and over. Match the backset to the existing door prep before substituting either way.
8) Which mortise lock should I use instead of the BEST 45H when the door needs to release on an access control signal?
The 45H is entirely mechanical. For electrified operation, the Command Access ML190 is a heavy duty motorized mortise lock in storeroom function with field selectable fail safe or fail secure operation on 24VDC, and the Schlage L9092EU with 03A trim is a heavy duty corridor-function mortise lock for 1-3/4 inch doors that electrically unlocks the outside lever, is keyed outside, and includes request to exit monitoring on 12 or 24VDC. Choose the ML190 if you want to set EL/EU in the field; choose the L9092EU if the spec calls for RX signaling back to the panel.
9) Is the BEST 45H a mortise lock or a cylindrical lock, and does that change my door prep?
Mortise. The lock case drops into a pocket cut into the edge of the door, not a round bore. If your doors are bored for a cylindrical lock you cannot swap a 45H in without re-prepping the door edge, and you would be looking at a cylindrical lock instead, such as the Schlage PC Series. Going the other way, a door already prepped for a standard ANSI mortise pocket with a 2-3/4 inch backset is the right candidate for this lock.
10) What trim and lever choices do I pick on a BEST 45H rose trim lock?
Three rose shapes: H flat 2-3/4 inch, R concave 2-3/4 inch, and S flat 3-1/2 inch. Lever and knob options are 12 solid tube with no return, 3 solid tube with return, 4 round knob, contour with angle return, curved with return, curved without return, and gull wing. Levers with a return are the usual pick where ADA style guidance drives the spec; the larger 3-1/2 inch S rose helps cover scarring from a previous lock on a retrofit.
11) Which BEST 45H finish should I use in a hospital or school?
626AM satin chrome and 630AM satin stainless steel carry the BEST UltraShield antimicrobial coating, which inhibits growth of bacteria and other microbes on the hardware surface. BEST calls those out for healthcare, elderly care, education, transportation, food service and hospitality. Standard finishes run 605, 606, 611, 612, 613, 618, 619, 622, 625, 626, 629, 630 and 690, so you can also match plain 626 or 630 on the rest of the building.
12) Is there an electronic mortise lock I can use instead of the keyed BEST 45H?
The 45H is fully mechanical, no electronics. If you want credential or code access in the same mortise pocket, the TownSteel FME-2000 Series is a Grade 1 heavy duty mortise lockset with RFID for 1-3/4 inch doors, the Schlage CO-100 is a standalone keypad mortise lock, and the Dormakaba E-Plex 2066 is an electronic pushbutton keyless mortise lock. For a wired electric option, the Command Access ML190 is a motorized mortise lock with field selectable fail safe or fail secure on 24VDC.
13) Is the BEST 45H tough enough for a high traffic entrance or is it just office grade?
It is built for heavy commercial duty. The case, cover and armored front are 0.095 inch cold rolled steel with zinc dichromate plating, held with four case cover screws at the corners plus an interlocking armored front and cover at the latch. The hub runs on roller bearings, and the one-piece stainless anti-friction latch gives 50 percent more contact surface with the strike. It is rated ANSI A156.13 Grade 1 for Operation and Strength.
14) Does the BEST 45H meet accessibility requirements for lever operation?
BEST states the design and operation of the mortise lock meets the intent of ANSI A117.1 section 404.2.6, the accessible door hardware provision. Pair that with one of the lever options rather than the 4 round knob if accessibility drives your spec.
15) Is the Hager 3810S rose trim mortise lock a substitute for the BEST 45H with rose trim?
They share the 2-3/4 inch backset and rose trim, but the function is different. The Hager 3810S is a Grade 1 passage mortise lock with rose and a 2-3/4 inch backset for doors 1-3/4 inch to 2-1/2 inch - no cylinder, no locking. The BEST 45H G is keyed on both sides with a double cylinder. Use the 3810S only where the opening is latch-only; for a keyed communicating opening it will not do the job. Hager also offers the 3810E, the same passage function with escutcheon trim rather than rose.
16) I need keypad access on a communicating door - what electronic mortise lock replaces a double keyed BEST 45H?
The BEST 45H is a mechanical lock with no electronic option, so credential access means a different platform. The Alarm Lock DL3500CR is a Grade 1 Trilogy electronic mortise lock with 300 user codes and classroom function for doors 1-5/8 inch to 1-7/8 inch; the DL2700CR is a Trilogy T2 Grade 1 classroom-function electronic mortise lock with a weatherproof design in the same door thickness range. For card and mobile credentials instead of codes, the Schlage LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and a 3 hour fire rating. Note the Alarm Lock door thickness range is narrower than the 1-3/4 inch standard the 45H is built for.
17) For a behavioral health unit, is the BEST 45H the right mortise lock or should I use an anti-ligature trim?
The 45H offers rose trim with levers and a round knob, which is standard commercial trim rather than ligature resistant. For patient-area openings, the TownSteel MRX-L-01 is a Grade 1 heavy duty stainless steel anti-ligature lever mortise lockset in passage function for 1-3/4 inch doors, and the MRX-A-01 is the same passage function with satin stainless ligature resistant arch trim. The Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset, ligature resistant and ADA compliant in satin stainless steel. All three are passage function, so use them where the opening does not need to be keyed.
18) What is a simpler non-keyed mortise lock than the BEST 45H for a closet or corridor door?
Where no cylinder is needed, the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, and the Falcon MA101 is a Grade 1 heavy duty mortise passage lock in the MA Series with field reversible operation and a fire rating. The Falcon's field reversible latch parallels the 45H's reversible latch that rotates 180 degrees without opening the case. If the opening does not have a mortise pocket at all, the Schlage PC10 is a Grade 1 cylindrical passage lock with rose for 1-3/4 inch doors.
19) Are Emtek mortise entrance locksets an alternative to the BEST 45H?
Not for a working opening. The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan mortise entrance locksets are dummy function - trim only, with no latch or cylinder operation. The BEST 45H is a commercial heavy duty keyed mortise lock. If you need matching inactive trim on a paired door, the Schlage L0170 is a Grade 1 heavy duty half dummy mortise lever trim for 1-3/4 inch doors.
20) What is a heavy duty Grade 1 mortise lock with rose trim comparable to the BEST 45H for a dormitory corridor?
The Sargent 7925 is a heavy duty Grade 1 mortise lock in the 7900 Series with rose trim, dormitory exit function and a single cylinder deadbolt. Compared with the BEST 45H G, which is keyed on both sides as a double cylinder communicating lock, the 7925 keys one side only and is built for corridor/dormitory operation. Both are heavy duty with rose trim; the deciding factor is whether the inside of the door needs a cylinder.
21) What is the difference between the BEST 45H and the Cal-Royal NM8050 for an office entrance?
The Cal-Royal NM8050 is a Grade 1 heavy duty office/entrance mortise lockset with auxiliary deadlatch for 1-3/4 inch doors. The BEST 45H G is a double keyed communicating function, which is keyed on both faces rather than offering the inside-thumbturn or lever-control behavior of an office function. The 45H is ANSI A156.13 Series 1000 Grade 1 for operation and strength with Grade 2 security, and is supplied with an SFIC prep less core, so pick it when the opening genuinely needs keys both ways and you are keying into a small format interchangeable core system.
22) How do the 613 and 690 BEST finishes hold up over time?
613 oxidized satin bronze is oil rubbed and is meant to wear, taking on an antique look as it ages. 690 dark bronze coated stays a dark brown appearance over time. If you need every opening in a building to look identical years from now, 613 is the one that will drift; 626 satin chrome or 630 satin stainless are the stable choices.
23) Can I tell at a glance whether a BEST 45H is locked?
Optional padlock icon indicators are available, showing an open padlock for unlocked and a closed red padlock for locked. On a double keyed communicating opening that visual cue matters, since there is no thumbturn position to read from the trim.
24) Can someone pull the cylinder out of a BEST 45H to defeat it?
The cylinder is retained by a security screw that cannot be reached until the interchangeable core is removed first, and solid machined cylinder rings with a wavy washer resist wrenching attacks. Since the lock ships prepped for an SFIC less core, the core you install becomes part of that protection.
25) Is a Sargent 130KB thumbturn a substitute for the inside cylinder on a double keyed mortise lock?
No. The Sargent 130KB is a standard duty mortise thumbturn for the 8200 Series, and the 130W is a standard duty thumbturn with round backplate for the 7800 Series - both are trim pieces that throw a bolt by hand, not locksets. The BEST 45H G is a complete heavy duty mortise lock with a cylinder on each side. If the code official will not accept a key on the egress side, choose a function with a thumbturn or lever release rather than adding a thumbturn to a double keyed case.
How fast can I get the BEST 45H7G15H613 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 45H7G15H613 come with a warranty?
Absolutely. The BEST 45H7G15H613 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 45H7G15H613?
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
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