BEST 45H Series Heavy Duty Mortise Lock with Visual Thumbturn Indicator - Dormitory Function
Professional Grade Mortise Lock with Visual Status Indication
The BEST 45H Series Heavy Duty Mortise Lock delivers commercial-grade security with dormitory function and visual thumbturn indicator for institutional applications. This ANSI A156.13 Grade 1 mortise lock features a 2-3/4" backset, solid stainless steel anti-friction latch with 1" deadbolt throw, and 0.095" cold rolled steel case construction for exceptional durability. The visual indicator displays padlock icons with red coloring for locked status and clear indication for unlocked states.
Professional Features & Benefits
- Heavy-Duty Case Construction: 0.095" cold rolled steel case measuring 5-7/8" H x 7/8" D x 4-1/16" W with zinc dichromate plating for superior corrosion protection and strength.
- 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.
- Visual Status Indication: Thumbturn indicator shows padlock icon open for unlocked and padlock icon closed with red paint for locked status providing clear operational feedback.
- Reversible Operation: Non-handed design with reversible latch that rotates 180 degrees for easy handing change without opening case, plus four position hub toggle 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: Hub mechanism provides smooth, wear-resistant operation with lever return spring located in trim for enhanced protection against lever droop.
- Grade 1 Performance: ANSI A156.13 Series 1000 Grade 1 Operation and Strength, Grade 2 Security rating with ANSI A117.1 section 404.2.6 compliance for accessibility.
- SFIC Compatibility: Small Format Interchangeable Core housing less core with solid machined cylinder rings and security screw preventing unauthorized cylinder removal.
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
- 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.
- Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for the 8" H x 1-1/4" W faceplate.
- Prepare door mortise pocket and frame strike preparation according to manufacturer specifications for 2-3/4" backset configuration.
- Install mortise case into door pocket and secure armored front assembly, allowing self-alignment with door bevel during installation using the four corner case cover screws.
- Mount escutcheon trim with visual thumbturn indicator and configure four position hub toggle for desired dormitory function operation.
- Test lock operation including latch and deadbolt function, visual indicator display, and lever return mechanism to verify proper alignment and smooth operation. Refer to manufacturer documentation for complete installation details and troubleshooting.
Professional Applications
- Dormitory and Student Housing Facilities
- Educational Institution Residential Areas
- Healthcare Patient Room Access
- Hotel and Hospitality Guest Rooms
- Multi-Tenant Residential Properties
- Assisted Living and Senior Care Facilities
- Commercial 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. The enhanced case integrity through four corner screws plus interlocking armored front design ensures long-term durability where dependable security performance is essential. ANSI Grade 1 certification and precision-engineered components provide the quality assurance required for institutional and commercial installations.
Manufacturer Resources
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:
- Indicator 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
- Function:
- Dormitory