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Sargent 28-7G37 LB Classroom Lever Lockset
Function Information:
The Sargent 28-7G37 LB is a professional-grade Grade 2 Cylindrical Classroom Lockset engineered for reliability in educational, commercial, and government environments. As a cornerstone of the Sargent 7-Line Series, this lockset is designed for openings where keyed security is essential to manage access while maintaining 100% life-safety compliance. The 28-prefix indicates the inclusion of the industry-standard 808 Curved Lip ANSI Strike, and the LB design features the straight B-lever paired with the contemporary L-rosette, crafted from solid one-piece cast construction for a precise, high-quality feel.
Advanced Security and Institutional Durability
The Sargent 7-Line is built to outperform the baseline requirements for Grade 2 hardware, offering facility managers "heavy-duty" performance in a versatile, standard-duty footprint.
- Exceeds Industry Standards: This lockset significantly exceeds ANSI/BHMA A156.2 Grade 2 cycle requirements, ensuring years of maintenance-free operation in high-traffic hallways and classrooms.
- One-Minute Installation: Specifically engineered for maximum efficiency, the 7G37 can be installed in one minute or less, drastically reducing labor costs for large-scale facility upgrades.
- Structural Integrity: Internal thru bolts supply unmatched strength and stability without requiring additional door preparation, fitting standard modified 161 door preps.
- Vandal Resistant Options: The solid cast levers provide a formidable barrier against abuse. For high-risk areas, optional Torx® or spanner screws and the vandal-resistant trim (FW- option) are available to further harden the opening.
Classroom Function & Life Safety (ANSI F84)
The 37 Classroom Function is the standard for school security, allowing authorized personnel to secure a room from the exterior while protecting the safety of those inside.
- Keyed Exterior Control: The outside lever is locked or unlocked exclusively by a physical key. This prevents unauthorized individuals from changing the locking status from the corridor side.
- Instant Interior Egress: The inside lever is always free for immediate exit. Occupants can never be locked inside the room, ensuring full compliance with NFPA 101 Life Safety codes.
- 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 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 | 37 Classroom (ANSI F84) |
| 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-prefix / Standard) |
| 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 |
| Warranty | 5-Year Limited Warranty |
Why Choose the Sargent 28-7G37 LB?
For contractors and facility managers at hospitals, schools, and government offices, the Sargent 28-7G37 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. By choosing the 7-Line, you gain a lockset compatible with high-security key systems like Degree®, Signature, and XC, ensuring your facility remains protected against modern security threats.
Ideal Applications:
- K-12 and University Classrooms: Providing secure corridor control with safe, immediate exit.
- Medical Facilities: Durable enough for the constant use found in healthcare environments.
- Government Buildings: Meeting strict standards for public building security and fire safety.
- Commercial Offices: A professional, fire-rated solution for training rooms and executive suites.
| 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 | F84 - Classroom |
| Trim Design | LB |
| Series | Sargent - 7 Line |
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