SS303 solid cast
USD32D/US4/US10B
M30 Escutcheon Indicator Lock ANSI/BHMA A156.13 F20 Apartment Corridor Door Lock
The M30 F20 Escutcheon Indicator Lock is designed for apartment corridor doors in multi-family residential and commercial buildings. It combines an indicator escutcheon with the DD Series mortise lock body, offering the most comprehensive functional configuration in the DD Series. Its versatile locking functions and durable construction make it suitable for demanding, high-use door applications.
Built
around the DD Series mortise lock body, the M30 F20 offers an extensive range
of locking functions in one platform. Its indicator escutcheon provides a clear
visual indication of door status, while the robust lock body is designed for
reliable operation in high-traffic environments.
The
lock features stainless steel construction, a trim secured by four
through-bolts, and quick-reversible handing without disassembling the lock
case. Multiple indicator wording options are available to suit different
project requirements.
Applications
l Apartment corridor doors
l Multi-family residential
buildings
l Hotels and hospitality
facilities
l Commercial and institutional
buildings
l High-traffic interior doors
requiring visual status indication
Escutcheon
Indicator Trim:
Provides
clear visual confirmation of the door's locking status, allowing users to
identify the indicated status at a glance.
Occupied/Vacant
Status Indication:
Helps
users determine whether a room is occupied or available without needing to
knock, improving convenience in privacy-sensitive areas.
Multifunction
Mortise Lock Body:
Built
on the DD Series platform, with four functions integrated into a single lock
case to accommodate different application requirements.
Grade
1 Performance:
Designed
to meet ANSI/BHMA A156.13 requirements and exceed Grade 1 cycle performance
requirements for demanding, high-traffic environments.
Stainless
Steel Construction:
Stainless
steel lock case and internal components provide strength, corrosion resistance,
and long-term durability.
Reinforced
Indicator Trim:
Four
through-bolts connect and secure the two sides of the indicator trim, helping
resist forced damage and improve mounting stability.
Quick-Reversible
Handing:
Allows
the handing to be reversed without disassembling the lock case, simplifying
installation and reducing adjustment time.
Flexible
Door Compatibility:
Suitable
for compatible wood and metal doors across multiple door thicknesses, subject
to the specified lock configuration and door preparation.
Multiple
Indicator Wording Options:
Available
wording options allow the indicator to be tailored to different applications
and user requirements.
Privacy
and Controlled-Access Applications:
Suitable
for restrooms, dressing rooms, mother's rooms, quiet rooms, and other spaces
requiring clear visual status indication.
Fire-Rated
Applications:
UL-listed
configurations are available for up to 3-hour fire-rated door assemblies,
subject to the applicable listing and installation requirements.
Commercial-Grade
Durability:
Designed for reliable operation in high-use commercial, healthcare, educational, and institutional environments.
| Picture | Model no. | ANSI no. | Function | Description | Lever | Cylinder | Thumb turn |
|---|---|---|---|---|---|---|---|
| DD20 | 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. | ✓ | ✓ | ✓ |
| 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 F04 |
| 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” |
| Hub | AISI4140 42CrMo steel |
| 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 |
| Indicator trim | SS303 cast steel, thickness 9/64" (3.6mm) |
| Handing | Non-handed, Field reversible latch bolt |
| Finishes | US32D/US4/US10B |
| ANSI/BHMA | ANSI/BHMA A156.13 certified Grade 1 |
| UL listed | UL/cUL 10C listed for 3 hour fire rating |
| Trim type | Escutcheon trim |
| Material | SS303 cast |
| Thickness | 9/64" (3.6mm) |
| Width | 2-1/16" (52mm) |
| Height | 9-11/16" (246.6mm) |
| Projection | 2-1/2" (63mm) |
SS303 solid cast
USD32D/US4/US10B
1-3/4"×3/8"(44×10mm)
SS303 cast US32D
Φ1-1/8"×1-1/2" (Φ29×38.2mm)
C28000 brass body, 6 pins
Satin nickel cylinder face
3 pcs of C26000 brass keys, nickel plated.
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
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