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Escutcheon electronic lock

M51 Electronic Mortise Lock ANSI/BHMA A156.13 F20 Apartment Corridor Door Lock

PRODUCT / Escutcheon electronic lock

M51 Electronic Mortise Lock – Escutcheon Trim Electronic Lock

The HARDWOOD M51 Electronic Mortise Lock combines intelligent electronic access control with the proven durability of the DD Series mortise lock body. Designed with escutcheon trim, it integrates modern electronic functions with a robust mechanical locking platform to provide security, convenience, and long-term reliability.

Supporting fingerprint, PIN code, RFID credentials, and mechanical key override, the M51 offers flexible entry options for a wide range of users and access requirements. Its stainless steel construction, tempered glass touch screen, and four through-bolts reinforce the trim for dependable performance in demanding environments.

Category
Electronic Lock
FUNCTION
ANSI BHMA A156.13 F20 Apartment Corridor Door Lock
01 / OVERVIEW

Overview

The M51 features an escutcheon trim electronic design integrated with the DD Series mortise lock body. It combines electronic credential management with the mechanical strength of a commercial mortise lock, providing a unified solution for controlled access and everyday door operation.

The lock supports multiple access methods, including fingerprint, PIN code, RFID credentials, and mechanical key override. Its tempered glass touch screen provides a modern user interface, while four through-bolts reinforce the trim to improve mounting stability and resistance to tampering.

Designed to meet ANSI/BHMA A156.13 requirements for mortise locks and ANSI/BHMA A156.25 requirements for electrified locking devices, the M51 is suited to commercial and residential projects requiring convenient access management, durable construction, and contemporary architectural styling.

 

Application

  • Office buildings
  • Apartments and multifamily housing
  • Hotels and hospitality projects
  • Mixed-use developments
  • Condominium entrances
  • Student housing
  • Senior living facilities
  • Access-controlled interior openings
  • Retrofit and new construction projects
  • Metal and wood doors

02 / FEATURE

Feature

Escutcheon Trim Design:

Integrated electronic escutcheon trim combines access control functions and door hardware in a coordinated architectural design.

Multiple Access Methods:

Supports fingerprint, PIN code, RFID credentials, and mechanical key override for flexible and convenient entry.

DD Series Mortise Lock Body:

Built on the DD Series mortise lock platform, combining electronic access control with robust mechanical locking performance.

Standards Compliance:

Designed to meet ANSI/BHMA A156.13 requirements for mortise locks and ANSI/BHMA A156.25 requirements for electrified locking devices.

Tempered Glass Touch Screen:

Provides a modern, easy-to-use interface with a clean architectural appearance.

Reinforced Escutcheon Trim:

Four through-bolts secure the trim to enhance mounting stability and resistance to vandalism.

Stainless Steel Construction:

Provides strength, corrosion resistance, and long-term durability for demanding commercial applications.

Keyless Entry Convenience:

Multiple electronic credentials reduce reliance on conventional keys and support flexible user access management.

Commercial-Grade Durability:

Designed for dependable operation in high-traffic commercial and residential environments.

Smooth Lever Operation:

Provides convenient mechanical door operation alongside electronic access control.

Reversible Handing:

Accommodates different door handing requirements for greater installation flexibility.

Metal and Wood Door Compatibility:

Suitable for compatible metal and wood doors, subject to door preparation and installation requirements.

Modern Architectural Appearance:

Combines electronic functionality with clean escutcheon styling suited to contemporary commercial and residential interiors.

03 / FUNCTION

Function

Picture Model no. ANSI no. Function Description Lever Cylinder Thumb turn Emergency turn
DG20 mortise lock function diagram
M51 F20 Apartment Corridor Door Lock Lever latch both sides; outside lever disable by non-key means. Deadbolt by key outside or turn inside; key operates both bolts. Inside lever retracts both; outside stays locked. Latch deadlocks when disabled or deadbolt thrown; re-enabled when deadbolt is retracted. ✓ ✓ ✓
04 / SPECIFICATION

Specification

Door preparation ANSI/BHMA A156.115W or A156.115
Door thickness For doors 1-3/4" (44mm) to 2-1/4" (57mm) thick standard
Stile 4-1/2" (114mm) minimum stile
Backset *Standard backset 2-3/4" (70mm)
CTC Cylinder to lever distance 3-7/8" (98mm)
Function ANSI F20
Lock case SS304, thickness 3/32"
Latch bolt SS303, A156.13 Grade 1 latch bolt projection 3/4", 2 pcs anti-fraction
Auxiliary latch bolt SS304, 3/8" projection, non-handed
Dead bolt 17-4PH stainless steel, A156.13 Grade 1 dead bolt projection 1”
Face plate SS304, ANSI/BHMA A156.115 8" × 1-1/4" × 1/16" (203 × 31.7 × 2.1mm)
Cylinder Φ1-1/8" cylinder, C28000 brass, 6 pin, 3 keys, satin nickel face
Strike SS304, 4-7/8" ANSI curved lip strike, thickness 1/8" (3mm)
Strike box PA66
Electronic trim SS303 cast escutcheon trim
Touch screen Tempered glass
Battery 4 AA batteries for 2 years normal life
Emergency power USB interface
Access methods Finger print, NFC, PIN code, key
Handing Non-handed, Field reversible latch bolt
Finishes US32D
ANSI/BHMA ANSI/BHMA A156.13 certified Grade 1
UL listed UL/cUL 10C listed for 3 hour fire rating
05 / CONFIGURATION

Configuration

Electronic trim details

M51 escutcheon trim
Trim type Escutcheon trim
Material SS303 cast
Thickness 1/8"~3/8" (3.6~9.6mm)
Width 2-7/8" (78mm)
Height 11-1/16" (281mm)
Projection 2-1/16" (52mm)

Lever details

M51 lever
M51A10 lever

SS303 solid cast

Thumbturn details

M30 thumb turn
T-thumb turn M30A5

1-3/4"×3/8"(44×10mm)

SS303 cast US32D

Cylinder details

A13 Cylinder details
A13 cylinder

Φ1-1/8"×1-13/16" (Φ29×46.7mm)

C28000 brass body, 6 pins

Satin nickel cylinder face

3 pcs of C26000 brass keys, nickel plated.

Strike details

ST-04 Strike details
ST-04 *Standard

4-7/8" (124mm) ANSI curved lip strike SS304.

1-3/16" (30mm) curved lip from center of screw holes to end of lip.

Strike box 4-3/4" × 1-1/8" × 1" (120×29×25mm), PA66

06 / DOCUMENTS

Documents

HARDWOOD product consultation support
07 / REQUEST INFORMATION

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