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Sargent 28-11G04 LL Storeroom Lever Lockset, Extra Heavy Duty
Function Information:
The Sargent 28-11G04 LL is a masterpiece of industrial engineering, designed for openings that demand the absolute highest level of security and durability. As part of the world-renowned Sargent 11-Line Series, this cylindrical lever lock is built to survive in the most punishing environments, including high-traffic schools, hospitals, and government facilities. The 28-prefix indicates this lock is supplied with a Sargent 6-pin LA Keyway cylinder, ensuring seamless integration into existing master key systems while providing professional-grade pick resistance.
Performance That Redefines Grade 1
While most commercial locks aim to meet the minimum requirements for ANSI/BHMA A156.2 Grade 1 certification, the Sargent 11-Line completely obliterates them. Independent laboratory testing has proven that this lock is in a class of its own:
- 12 Times the Industry Standard: This lock has been tested to exceed 10,000,000 (Ten Million) cycles. To put that in perspective, it lasts 12 times longer than the standard 800,000-cycle requirement for Grade 1 hardware.
- Extreme Torque Resistance: The 11G04 can withstand over 3,000 in/lbs of torque applied to a locked lever. This is 3 times the force required for Grade 1 status, providing unmatched protection against "broomstick" attacks and extreme vandalism.
- Zero Lever Sag: Engineered with high-carbon steel spring cartridges, the LL lever design maintains a perfectly horizontal profile for the life of the lock.
- 10-Year Warranty: Sargent stands behind this hardware with a 10-year limited warranty that requires no scheduled maintenance or service to remain valid.
Storeroom Function Security (ANSI F86)
The 04 Storeroom Function is specifically designed for high-security areas that must never be left accidentally unlocked.
- Permanent Exterior Lock: The outside lever is always rigid. Access can only be gained by using a physical key to retract the latchbolt.
- Automatic Re-locking: Once the key is removed, the door is instantly secure. There are no buttons or toggles on either side that could accidentally leave the room vulnerable.
- Fail-Safe Interior Egress: The inside lever is always free for immediate exit. Occupants can never be locked inside the room, ensuring 100% compliance with NFPA 101 Life Safety and ADA accessibility codes.
- High-Security Latch: Features a 1/2" throw stainless steel latchbolt with a deadlocking auxiliary bolt to prevent "shimming" or credit card attacks.
Technical Specifications & Compatibility
| Feature | Details |
| Certification | ANSI/BHMA A156.2 Series 4000 - Grade 1 (Extra Heavy Duty) |
| Function | 04 Storeroom (ANSI F86) |
| Cycle Rating | Tested to exceed 10,000,000 (Ten Million) Cycles |
| Lever Style | LL Design (Sargent’s iconic heavy-duty linear lever) |
| Cylinder / Keyway | 6-Pin Brass, Sargent LA Keyway |
| Standard Strike | 4-7/8" ASA Strike (Standard for commercial hollow metal frames) |
| Backset | 2-3/4" (Standard for heavy-duty commercial applications) |
| Door Thickness | Fits standard 1-3/4" thick doors |
| Warranty | 10-Year Mechanical Limited Warranty |
Why Choose the Sargent 28-11G04 LL?
For facility managers and building owners, the Sargent 11G04 represents the lowest total cost of ownership in the industry. By investing in a lock that lasts 10 million cycles, you eliminate the labor costs and frustration associated with frequent hardware replacements in high-abuse areas.
Ideal Applications:
- School Maintenance Closets: Preventing unauthorized student access to chemicals and tools.
- Hospital Mechanical Rooms: Protecting critical HVAC and electrical infrastructure.
- Commercial IT Rooms: Securing server racks and sensitive data.
- Government Offices: Providing a fire-rated, Grade 1 barrier for restricted zones.
| Finish with BHMA code | 626 - US26D Satin Chrome or 613E - US10BE Oil Rubbed Bronze Equal |
| 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 | LL |
| Series | Sargent - 11 Line |
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