Sargent 10XG16 LL Classroom Security Lever Lockset — US26D Satin Chrome

The Sargent 10XG16 LL is a heavy-duty, Grade 1 cylindrical classroom security lever lockset finished in US26D (satin chrome). Engineered for schools, universities, healthcare facilities, and other high-traffic commercial openings, the 10XG16 delivers the lockdown-capable security function that modern facility managers and security-conscious specifiers demand — without sacrificing everyday convenience for occupants.

Function: Classroom Security (Intruder / Lockdown Function)

The 10XG16 function is Sargent's Classroom Security / Intruder Latchbolt lockset — comparable to ANSI/BHMA F84 Classroom Security. Key operational characteristics:

• Outside lever: Locked or unlocked by key from either side — allowing staff in the corridor to initiate a lockdown without entering the room.
• Inside lever: Always free for immediate egress — occupants can exit at any time regardless of outside lever status (life-safety compliant).
• Key retracts latch: A key from either side can retract the latchbolt for entry/exit without unlocking the lever.
• Auxiliary deadlatch: Provides latchbolt security against shimming or credit-card attacks when the door is closed.

This function is widely specified for active-shooter lockdown preparedness in K–12 schools, community colleges, and campus buildings where the ability to secure a room from the corridor is a code or district requirement.

Key Benefits

• Grade 1 commercial strength — built to ANSI/BHMA A156.2 Grade 1 standards for heavy-duty, high-cycle applications
• Classroom Security / Intruder function — corridor-side key lockdown without entering the room; inside lever always allows free egress
• LL lever trim — Sargent's LL (Lion's Head) lever style; check current Sargent catalog for ADA lever compliance on your specific opening
• US26D finish — satin chrome, corrosion-resistant, blends with standard commercial door hardware suites
• Auxiliary deadlatch — anti-shim security when door is in the closed and latched position
• Cylindrical (bored) installation — installs in standard 2-1/8" bore prep; no special door modification required beyond standard cylindrical prep

Typical Applications

• K–12 school classrooms requiring lockdown-capable hardware
• University and community college instructional rooms
• Healthcare exam rooms and clinical spaces
• Government and municipal office doors with security requirements
• Any commercial opening where the Classroom Security / Intruder function is specified

Technical Details

Need a comparable classroom security lockset from an alternative preferred line? Contact us — Sargent is a preferred brand for this category, and our team can also quote comparable options from Corbin Russwin, Hager, or PDQ to fit your project spec.

The Sargent 28-10XG16 LL is a high-performance Grade 1 Cylindrical Lock engineered for mission-critical security. Designed for the Classroom Security/Public Entrance (F88) function, this double-cylinder lockset allows the outside lever to be locked or unlocked by key from either side. This "Intruder" capability is a vital life-safety feature, enabling teachers or staff to lock down a room from the inside without ever stepping into a hallway. As a cornerstone of the Sargent 10X Line, it is built to endure the most rigorous institutional environments, outperforming standard hardware by up to 20 times.

Elite Lockdown Security & Vandal Resistance

The 10XG16 is the ultimate choice for facility managers prioritizing safety and durability. It features a unique double-cylinder design where the inside cylinder provides immediate control over the exterior handle's status. For added security, a visual lock indicator on the inside rose comes standard, providing at-a-glance confirmation that the door is secured. To thwart physical attacks, the lock resists over 3,100 in-lb of torque and 1,600 lbs of offset pull, while the freewheeling lever prevents vandals from forcing the mechanism.

Proven Performance Beyond Grade 1

Tested to an industry-shattering 20 million cycles, the Sargent 28-10XG16 is UL-verified to last decades in high-traffic schools, hospitals, and government offices. It is designed to function perfectly even under 100lb of latch preload, ensuring reliable operation on warped doors or those with heavy weatherstripping. The ergonomic LL linear lever meets all ADA accessibility standards, and the lock is UL/cUL Listed for use on 3-hour fire doors.

Key Product Features

• Double Cylinder Function: Lock or unlock the outside lever using a key from either the interior or exterior side.
  
• Visual Status Indicator: Standard internal rose indicator provides immediate "Locked/Unlocked" confirmation.
  
• Unmatched Durability: UL-verified for 20 million cycles, significantly exceeding ANSI/BHMA A156.2 requirements.
  
• Intruder Classroom Safety: Allows for rapid lockdown from within the room to protect occupants.
• High-Impact Construction: Withstands 100 vertical impacts—20 times the industry standard for vandal resistance.
  
• ADA & Fire Rated: Meets ANSI A117.1 standards and is rated for 3-hour fire-rated openings.

Technical Specifications

Ideal Applications

• K-12 & Higher Education: Essential for classroom doors requiring rapid intruder lockdown capabilities.
• Public Buildings: Securing entrance points where key control is required from both sides.
• Healthcare Facilities: Patient wings or staff areas requiring clear visual status of the lock.
• Government/Corporate: High-security offices and conference rooms.
  

Ordering & Installation Information

The Sargent 28-10XG16 is non-handed and utilizes standard door preparation for ease of installation. For doors thicker than 2", please specify the 31- Option. This chassis supports all major Sargent Key Systems, including Degree®, Signature, and Keso, allowing it to integrate seamlessly into your existing master key system.