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Sargent 28-7G04 LB Storeroom Lever Lockset
Function Information:
The Sargent 28-7G04 LB is an industrial-grade Grade 2 Cylindrical Storeroom Lock specifically engineered for high-security applications where doors must remain permanently locked to unauthorized entry. As a core component of the Sargent 7-Line Series, this lockset is designed for mechanical rooms, janitorial closets, and IT suites that demand 24/7 restricted access. The 28-prefix indicates the inclusion of the 808 Curved Lip ANSI Strike, while the LB design combines the straight, professional B-lever with the sleek, contemporary L-rosette for an architectural finish.
Maximum Security and Restricted Access
The 04 Storeroom Function (ANSI F86) is designed to eliminate human error by ensuring the door is always secure.
- Permanently Locked Exterior: The outside lever is always rigid. Entrance is only possible by using a physical key to retract the latchbolt. The door relocks automatically the moment the key is removed.
- Fail-Safe Interior Egress: The inside lever is always free for immediate exit. This ensures 100% compliance with NFPA 101 Life Safety codes, preventing anyone from being locked inside.
- Deadlocking Protection: Features a 1/2" throw brass latch with a deadlocking auxiliary bolt to prevent "shimming" or unauthorized manipulation from the corridor side.
- Solid Cast Construction: The B-levers are solid, one-piece castings, providing a substantial, precise feel and far superior durability compared to hollow or stamped alternatives.
Institutional Strength and Rapid Installation
The Sargent 7-Line is built to outperform the baseline for Grade 2 hardware, offering facility managers "heavy-duty" performance in a versatile footprint.
- Exceeds Grade 2 Standards: This series significantly exceeds ANSI/BHMA A156.2 Grade 2 cycle requirements, ensuring a long service life with a 5-year limited warranty.
- One-Minute Installation: Specifically engineered for maximum efficiency, the 7G04 installs in one minute or less, drastically reducing labor costs for facility-wide upgrades.
- Thru-Bolt Stability: Internal thru bolts supply unmatched strength and stability without requiring additional door preparation, fitting standard modified 161 door preps.
- Corrosion Resistance: The cylindrical housing is constructed of steel with a zinc dichromate finish to protect the internal mechanism from environmental wear and moisture.
Technical Specifications
| Feature | Details |
| Series | Sargent 7-Line (Cylindrical) |
| Function | 04 Storeroom / Closet (ANSI F86) |
| 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) |
| Door Thickness | 1-3/4" Standard (Adjustable for 1-3/8") |
| Handing | Non-Handed (Universal Field Reversible) |
| Housing | Steel, Zinc Dichromate Finish |
Why Choose the Sargent 28-7G04 LB?
For contractors and facility managers, the Sargent 28-7G04 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:
- Commercial IT Rooms: Restricting access to sensitive servers and data racks.
- Medical Supply Closets: Secure storage for pharmaceuticals and high-value equipment.
- School Mechanical Rooms: Preventing unauthorized access to HVAC and electrical systems.
- Government Storage: A fire-rated, Grade 2 barrier for restricted zones and closets.
| 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 | F86 - Storeroom |
| Trim Design | LB |
| Series | Sargent - 7 Line |
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