Sargent 8237 BHW Ligature Resistant Classroom Mortise Lockset
The Sargent 8237 BHW is a heavy-duty, ligature-resistant classroom mortise lockset engineered specifically for behavioral health, psychiatric, and institutional healthcare environments. Combining the proven Sargent 8200 Series mortise lock case with the integrated BHW trim, this lockset delivers ANSI/BHMA Grade 1 security in settings where anti-ligature design is a clinical and safety requirement. The 8237 function is a Classroom (ANSI F05) configuration: the outside lever is normally locked and can be locked or unlocked by key from outside; free egress is always available from the inside lever. This makes it the standard specification for patient room corridors, behavioral health unit doors, and similar institutional openings where staff-controlled entry and unrestricted egress are both required.
The BHW trim features an aesthetic, sloped-surface integrated lever and escutcheon assembly specifically engineered to minimize ligature attachment points. Tapered surfaces, recessed lever geometry, and the absence of projecting hardware elements reduce the risk of an object being affixed to or around the trim. The 8200 mortise lock body is certified to ANSI/BHMA A156.13 Series 1000, Operational Grade 1 and Security Grade 1 — and independently verified to exceed the Grade 1 cycle standard. BHW trim is available in stainless steel finishes (629 (bright stainless)ight stainless) and meets ANSI A117.1 Accessibility (ADA) requirements. The lockset installs on any door prepared to ANSI A156.115 standard mortise door prep with only two additional holes required, supporting straightforward retrofit applications in existing facilities.
Key Features & Benefits
- Ligature-Resistant BHW Integrated Trim: Sloped, tapered lever and escutcheon assembly with a low-profile, sloped profile; engineered for behavioral health and psychiatric care settings.
- Classroom Function (ANSI F05): Outside lever locked by key from outside; inside lever always free for unrestricted egress — ideal for patient rooms and staff-controlled corridor doors.
- ANSI/BHMA A156.13 Grade 1 Certified: The 8200 mortise lock exceeds ANSI Grade 1 operational and security standards; independently cycle-tested well beyond minimum requirements.
- ADA / A117.1 Compliant Trim: Meets ANSI A117.1 accessibility code and BOMA International 4.13.8 requirements; complies with the Americans with Disabilities Act.
- Stainless Steel Construction: BHW trim available in 629 (bright stainless) and 630 (satin stainless) stainless steel finishes; corrosion-resistant for healthcare cleaning protocols.
- Retrofit-Friendly Installation: Installs on existing ANSI A156.115 standard mortise door prep with only two additional holes; reduces retrofit cost and downtime.
- Matching Behavioral Health Thumbturn: Coordinating thumbturn available to complete the aesthetic and functional package on inside hardware.
- MicroShield Antimicrobial Option: Available with Sargent MicroShield antimicrobial coating for enhanced infection control in clinical environments.
- 10-Year Limited Warranty: The 8200 lockbody carries a 10-year limited mechanical warranty, limited to replacement of the lockbody.
- Handed Trim — Order Accordingly: BHW trim is handed and must be specified with the correct hand orientation at time of order.
Classroom Function Explained (ANSI F05)
The ANSI F05 Classroom function is the standard specification for educational and institutional doors requiring staff-controlled entry with guaranteed free egress. In this configuration, the outside lever is locked by default and can only be unlocked or locked by a key held by authorized staff — it cannot be locked or unlocked from inside. The inside lever is always free, ensuring occupants can exit at any time without a key. This function meets life-safety egress requirements while supporting institutional security protocols.
Technical Details
| Feature | Details |
|---|---|
| Model / Series | Sargent 8237 BHW — 8200 Series Mortise Lock with BHW Trim |
| Lock Function | Classroom — ANSI F05 (outside lever locked; inside lever always free) |
| Trim Type | BHW — Behavioral Health Wide integrated lever and escutcheon; ligature-resistant sloped surfaces |
| ANSI/BHMA Standard | A156.13 Series 1000, Operational Grade 1 and Security Grade 1 |
| Accessibility | ANSI A117.1 compliant; ADA compliant (consult local authorities) (consult local authorities) |
| Backset | 2-3/4" standard |
| Door Thickness | 1-3/4" standard |
| Door Prep | ANSI A156.115 standard mortise prep (2 additional holes required for BHW trim) |
| Minimum Stile Width | 4-1/2" (114mm) minimum stile for BHW trim |
| Finishes Available | 629 (bright stainless), 630 (satin stainless) |
| Handing | Handed — must be specified at time of order |
| Electrified Options | Fail Safe and Fail Secure electrified functions available in BHW trim |
| Antimicrobial Option | MicroShield antimicrobial coating available (SG- option) |
| Warranty | 10-year limited (mechanical); 2-year limited (electrified) |
| Typical Applications | Behavioral health units, psychiatric facilities, VA hospitals, patient corridor doors, institutional healthcare |
| Technical Reference | Sargent 7800/8200 Series Mortise Lock Catalog (doc AADSS1004639); BHW Trim Installation Instructions (doc AADSS1054617); BHW Trim FAQ (doc AADSS1005289) |
The Sargent 8237 BHW is a specialized, Grade 1 Heavy-Duty Mortise Lockset designed to combine high-security classroom control with the rigorous safety requirements of behavioral health facilities. Built on the powerhouse Sargent 8200 Series chassis, this lockset is engineered to withstand extreme physical abuse while protecting vulnerable occupants. The BHW Behavioral Health Trim features integrated, sloped surfaces to minimize ligature attachment points, making it an essential life-safety component for psychiatric wards, medical centers, and high-risk educational settings.
Essential Classroom Safety & Access (ANSI F05)
The 8237 function provides faculty and staff with precise control over the room's security while ensuring that a safe exit is always available to occupants.
- Keyed Exterior Control: The outside lever is locked or unlocked by a physical key using the standard Sargent LA Keyway. When locked, the outside lever remains rigid, preventing unauthorized entry from the hallway.
- Fail-Safe Interior Egress: Regardless of the locking state on the exterior, the inside lever is always operative. This allows students and staff to exit the room instantly in an emergency, ensuring full compliance with NFPA 101 Life Safety and ADA codes.
- Deadlocking Latchbolt: Features a 3/4" throw stainless steel latchbolt with an auxiliary deadlatch. This "dead-locking" feature prevents "shimming" or forced manipulation of the latch when the door is closed.
- Security & Authority: Because there is no thumbturn or toggle on the interior, the locking status can only be changed by authorized keyholders, preventing unauthorized students or patients from tampering with the door's security.
Specialized BHW Ligature-Resistant Trim
The BHW trim is proven for anti-ligature hardware, balancing a therapeutic "normative" aesthetic with the highest levels of institutional protection.
- Sloped & Tapered Surfaces: Every component of the BHW lever and escutcheon is contoured and tapered to prevent the looping of cords, clothing, or bedsheets, significantly reducing the risk of ligature-related incidents.
- Integrated Lever & Escutcheon: The unique overlap between the lever and the escutcheon plate is designed to reduce points where material could be wedged.
- Exceeds 16 Million Cycles: Independently verified to withstand over 16 times the cycle requirements for a Grade 1 rating, ensuring this lockset remains reliable in the most high-traffic healthcare environments.
- High-Security Fasteners: Supplied with Torx® security screws to prevent unauthorized removal or tampering of the hardware by patients or unauthorized personnel.
Key Product Features
- ANSI/BHMA Grade 1 & Security Grade 1: The most robust mechanical rating available, providing maximum resistance against physical attack.
- Classroom Function (F05): Permanent key control of the exterior with fail-safe egress for the interior.
- Behavioral Health Optimized: Specifically designed to minimize ligature points in psychiatric and institutional settings.
- Sargent LA Keyway: Ships with a 6-pin brass cylinder in the standard LA Keyway, allowing for seamless integration into existing master key systems.
- Fire-Rated Integrity: UL/cUL Listed for use on 3-hour fire-rated doors, maintaining a critical safety barrier in corridor applications.
- Vandal-Resistant Chassis: Constructed with a 12-gauge heavy-duty wrought steel lock case, zinc dichromate plated for maximum corrosion resistance.
Technical Specifications
| Feature | Details |
| Function | 37 Classroom (ANSI F05) |
| Series | 8200 Heavy-Duty Mortise |
| Trim Style | BHW (Ligature Resistant) |
| Cylinder | 6-Pin Brass, LA Keyway |
| Finish | US32D (Satin Stainless Steel) |
| Latchbolt | 3/4" Throw Stainless Steel Anti-Friction |
| Backset | 2-3/4" (Standard for Mortise Locks) |
| Warranty | 10-Year Mechanical Limited Warranty |
Ordering & Installation Information
The Sargent 8237 BHW is a handed product. Because the ligature-resistant slopes must be oriented correctly for patient safety, specifying the door swing is mandatory at the time of order. This hardware fits standard mortise door preparations and is compatible with Sargent High-Security key systems, including Degree® and Signature.

Special Note: The door handing information is needed upon order placement. If you are unsure of the handing of your door, please compare the picture below to your opening for clarification.
Ideal Applications
- Psychiatric Facility Classrooms: Providing teachers with control and students with safe egress and anti-ligature protection.
- Behavioral Health Administrative Areas: Securing offices and consultation rooms in high-risk zones.
- Correctional Educational Suites: Industrial-strength security combined with fire-rated, Grade 1 durability.
- VA Medical Centers: Upgrading specialized healthcare units to meet modern safety and suicide prevention guidelines.
| Sargent Cylinder Options | KD - LA Kwy Keyed Different or 60 prefix - Sargent LFIC Prep Less Core or 70 prefix - Best/Falcon SFIC Prep Less Core or LC - Less Sgt Cylinder |
| Door Handing | LH or RH or RHR or LHR |
| Finish with BHMA code | 630 - US32D Satin Stainless |
| Brand | Sargent |
| ANSI Mortise Lock Function | F05 - Classroom |
| Trim Design | BHW |
| Series | Sargent - 8200 Series |
| Anti-Ligature | True |
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