BEST 45H7AB12R626 Grade 1 Office Mortise Lock – 12 Lever, R Rose, Satin Chrome Finish

The BEST 45H7AB12R626 Grade 1 Office Mortise Lock is a heavy-duty commercial mortise lock designed for high-traffic office and institutional applications where strength, durability, and reliable performance are essential. Featuring a 12 Lever design, R Rose trim, SFIC housing-less core preparation, and Satin Chrome (626/US26D) finish, this lock provides a professional appearance while delivering superior security and long-lasting operation.

Part of the trusted BEST 45H Series Mortise Lock family, this Grade 1 lock is engineered with precision components, a durable steel case, and a reversible latch design for easy installation and field handing adjustments. It is ANSI A156.13 Series 1000 Grade 1 and UL Listed, making it suitable for demanding commercial environments.

Key Features

• Grade 1 Commercial Mortise Lock – Built for high-use applications requiring maximum durability and security.
• Office/Entry Function (F20) – Designed for office doors where authorized entry is required.
• 12 Lever Straight Lever Design – Provides a clean architectural appearance and comfortable operation.
• R Rose Trim – Classic styling compatible with various commercial door applications.
• SFIC Housing-Less Core Preparation – Allows compatibility with Small Format Interchangeable Core systems (core sold separately).
• Field Reversible Latch – Easily adjusts handing without opening the lock case, simplifying installation.
• Heavy-Duty Construction – Features a cold rolled steel case, cover, and armored front for enhanced strength.
• Smooth & Reliable Operation – Roller bearing hub mechanism reduces wear and ensures consistent performance.
• ANSI Curved Lip Strike Included – Provides secure door engagement and proper alignment.
• 3-Hour Fire Rating – UL Listed for use on fire-rated openings.

Specifications

• Manufacturer: BEST
• Model/SKU: 45H7AB12R626
• Grade: Grade 1
• Function: AB Office / Entrance Office
• ANSI Function: F20
• Finish: 626 / US26D Satin Chrome
• Lever Design: 12 Lever Straight Lever
• Rose/Escutcheon: R Rose
• Cylinder Preparation: SFIC Prep, Housing-Less Core
• Handing: Field Reversible
• Door Thickness: 1-3/4"
• Latch Backset: 2-3/4"
• Latch Projection: 3/4"
• Faceplate Size: 8" x 1-1/4"
• Strike: ANSI Curved Lip Strike (40HST1)
• Strike Size: 4-7/8" x 1-1/4"
• Material: Brass, Bronze, Steel Components
• UL Listing: ANSI A156.13 Series 1000, Grade 1, UL Listed
• Fire Rating: 3 Hours (A)
• Warranty: Limited Lifetime Warranty

Applications

Ideal for:

• Commercial office buildings
• Schools and universities
• Government facilities
• Healthcare facilities
• High-traffic interior doors
• Institutional and multi-tenant properties

The BEST 45H7AB12R626 Mortise Lock delivers the proven reliability, security, and durability required for professional commercial installations while offering easy maintenance and installation flexibility.