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Sargent 28-7G05 LB Office Lever Lockset
Function Information:
The Sargent 28-7G05 LB is a high-performance Grade 2 Cylindrical Office Lever Lockset engineered for versatility and security in commercial, institutional, and government environments. As part of the prestigious Sargent 7-Line, this lockset is designed to exceed ANSI/BHMA A156.2 standards, offering a "heavy-duty" feel in a standard-duty footprint. The 28-prefix specifies the inclusion of the 808 Curved Lip ANSI Strike, while the LB design combines the contemporary L-Rosette with the straight, ergonomic B-Lever for a professional, architectural aesthetic.
Engineered for Durability and Rapid Deployment
The Sargent 7-Line is a favorite among facility managers due to its robust construction and industry-leading installation speed.
- Exceeds Grade 2 Standards: This series significantly surpasses ANSI/BHMA A156.2 Grade 2 cycle requirements, ensuring years of maintenance-free service in high-traffic office suites and public areas.
- One-Minute Installation: Specifically designed for efficiency, the 7G05 installs in one minute or less, drastically reducing labor costs for facility-wide hardware upgrades.
- Thru-Bolt Stability: Internal thru bolts provide maximum strength and stability without requiring additional door preparation, fitting standard modified 161 door preps perfectly.
- Solid Cast Construction: The levers are solid, one-piece castings, offering a substantial, precise feel and superior resistance to daily wear compared to stamped alternatives.
Office & Entrance Function (ANSI F109)
The 05 Office Function provides flexible security modes, making it the ideal choice for executive offices, consultation rooms, and administrative entrances.
- Dual Locking Modes: The exterior lever is locked by a push-button on the interior or by a key from the exterior. Rotating the interior turn-button keeps the exterior lever locked, providing a "fixed" secure state.
- Instant Interior Egress: The inside lever is always free for immediate exit, ensuring 100% compliance with Life Safety Codes and ADA accessibility requirements.
- Deadlocking Protection: Features a 1/2" throw brass latch with a deadlocking auxiliary bolt to prevent "shimming" or unauthorized manipulation when the door is closed.
- ADA Compliant B-Lever: The straight B-lever design is ergonomically shaped for ease of use, meeting all Americans with Disabilities Act standards for operation without tight grasping or twisting.
Technical Specifications
| Feature | Details |
| Series | Sargent 7-Line (Cylindrical) |
| Function | 05 Office / Entrance (ANSI F109) |
| Certification | Exceeds ANSI/BHMA A156.2 Grade 2 |
| Lever / Rosette Style | LB Design (B-Lever / L-Rosette) |
| Strike Plate | 808 Curved Lip ANSI Strike (28-Option / 4-7/8") |
| Backset | 2-3/4" (Standard Commercial) |
| Cylinder/Keyway | Brass 6-Pin, Sargent LA Keyway (Standard) |
| Handing | Non-Handed (Universal Field Reversible) |
| Door Thickness | 1-3/4" Standard (Adjustable for 1-3/8") |
| Housing | Steel, Zinc Dichromate Finish (Corrosion Resistant) |
| Warranty | 5-Year Limited Warranty |
Why Choose the Sargent 28-7G05 LB?
For contractors and building owners, the Sargent 28-7G05 LB represents a high-value security investment. It provides the architectural continuity of a professional straight lever with the mechanical strength required for 24/7 public use. This lockset is compatible with high-security key systems, including Degree®, Signature, and XC, ensuring your facility remains protected against modern security threats while maintaining a clean, modern look.
Ideal Applications:
- Professional Office Suites: Flexible locking modes for executive and administrative doors.
- Medical Facilities: Durable, solid levers with a precision feel for exam and consultation rooms.
- Government Buildings: Grade 2 performance that meets strict public building fire and safety codes.
- Commercial Retail Offices: A fire-rated, keyed solution for back-office and inventory security.
| Finish with BHMA code | 626 - US26D Satin Chrome or 613 - US10B Oil Rubbed Bronze or 613E - US10BE Oil Rubbed Bronze Equal or 605 - US3 Polish Brass or 606 - US4 Satin Brass or 612 - US10 Satin Bronze or 625 - US26 Polish Chrome |
| Backset | 2-3/4" Backset or 2-3/8" Backset |
| Sargent Cylinder Options | KD - LA Kwy Keyed Different or SC - Schlage C Kwy 0 Bitted or 60 prefix - Sargent LFIC Prep Less Core or 70 prefix - Best/Falcon SFIC Prep Less Core or LC - Less Sgt Cylinder |
| Brand | Sargent |
| ANSI Cyl Lock Function | F81 - Office Entrance |
| Trim Design | LB |
| Series | Sargent - 7 Line |
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