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Hager 3857S Intruder Classroom Mortise Lockset – Grade 1 Sectional Trim
The Hager 3857S Intruder Classroom Mortise Lockset is a premier security solution designed for modern educational facilities, municipal buildings, and high-risk commercial environments. This Intruder Classroom Function (ANSI F32) set is specifically engineered for emergency situations: it allows a teacher or administrator to lock the outside lever immediately from the inside using a key. This "double cylinder" design ensures that staff can secure a room without ever stepping into the hallway, providing a critical layer of protection during a lockdown.
By utilizing the Sectional (S) Trim, the 3857S offers a contemporary, low-profile aesthetic that is ideal for modern architectural projects where a clean look is desired without compromising on safety. As a BHMA Certified Grade 1 device, it is built to withstand the most demanding physical environments while maintaining smooth mechanical performance for millions of cycles.
Rapid Lockdown & Modern Architectural Style
The Hager 3857S combines high-level security with ADA compliant lever handles. A vital safety feature of this lockset is that the inside lever is always active, ensuring immediate egress at all times, regardless of the locked status of the exterior. For a permanent and stable mount, the sectional roses are secured using thru bolts, providing a high-strength, through-the-door connection that keeps the hardware perfectly aligned even under heavy daily use.
Key Features
- Intruder Classroom Function: Outside lever is locked or unlocked by key from either side (ANSI F32).
- Rapid Lockdown: Allows for immediate security from inside the room without hallway exposure.
- Grade 1 Reliability: BHMA certified to meet the highest industry standards for mechanical life and durability.
- Life Safety Egress: Inside lever is always free for immediate exit.
- Sectional Rose Trim: 2-7/16" diameter roses provide a clean, modern, and minimalist architectural look.
Technical Specifications
| Feature | Specification |
| Model Number | Hager 3857S |
| ANSI Function | F32 (Intruder Classroom) |
| Certification | BHMA Certified Grade 1 (ANSI A156.13) |
| Trim Style | Sectional (S) Rose Design |
| Rose Diameter | 2-7/16" (62 mm) |
| Door Thickness | Standard 1-3/4" (Fits up to 2-1/2" doors) |
| Backset | 2-3/4" (70 mm) Standard |
| Fasteners | Thru Bolts, Wood, and Machine Screws |
| Warranty | Lifetime Limited Manufacturer Warranty |
Available Finish & Style Options
Customize your Hager 3857S at DoorwaysPlus.com to match your facility's architectural aesthetic:
- Lever Designs: Choose from the Archer (ARC), August (AUG), or Withnell (WTN) styles.
- Architectural Finishes: Available in Satin Stainless Steel (US32D), Satin Chrome (US26D), Dark Bronze (US10B), and Bright Brass (US3).
- Cylinder Options: Conventional Schlage C Keyway standard; compatible with SFIC (Small Format Interchangeable Core) for high-security key control.
| Trim Design | WTN - Withnell or ARC - Archer or AUG- August |
| General - US Finishes | US26D - Satin Chrome or US32D - Satin Stainless Steel/ 630 or US26 - Polished Chrome or US15 - Satin Nickel or US3 - Polished Brass or US4 - Satin Brass or US10B - Oil Rubbed Bronze |
| Cylinder Options | SCC - Schlage C Keyway or Less Cylinder |
| Brand | Hager |
| ANSI Mortise Lock Function | F33 - Classroom Security |
| Series | Hager - 3800 Series |
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