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Home » Door Hardware » Door Lock » Euro Mortise Lock » Commercial Project Hardware Mute Mortise Lock with Bit Key-DDML055

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Commercial Project Hardware Mute Mortise Lock with Bit Key-DDML055

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A noise-reduced mortise lock matched with a bit key, which can significantly lower the noise generated during opening and closing, and has higher anti-prying security than external mounted locks, mostly used for noise-sensitive indoor doors.
  • DDML055

  • D and D Hardware

  • Stainless Steel

  • SSS , PSS , PVD , PB, AB , AC, MB

  • Silver,Black, Golden, Antique Brass, Antique Copper

  • Wooden Door, Metal Door, Fire Door, Smoke Door, Interior Door, Outer Door, Swing Door etc.

  • T/T, L/C, D/P, Western Union

  • Jiangmen /Guangzhou / Shenzhen , China

  • 200,000/Month

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Commercial Project Hardware Mute Mortise Lock with Bit Key-DDML055


D&D Mute Mortise Lock with Bit Key (model DDML055) combines whisper-quiet operation with classic bit key functionality, offering a unique locking solution for traditional and heritage-style doors. Featuring a 50mm backset and 85mm distance, this lock is compatible with standard door preparations for straightforward installation. The forend and strike plate are constructed from durable SUS201 stainless steel, ensuring long-lasting strength and corrosion resistance. The deadbolt features an oblique tongue design with plastic construction, which reduces friction and contributes to smoother, quieter locking and unlocking actions. The bit key mechanism provides reliable deadbolt control, making it ideal for restoration projects, vintage buildings, and applications where traditional key operation is preferred. Available in a variety of finishes—SSS, PSS, PVD, PB, AB, and AC—this lock offers versatile design options to match different door styles and architectural aesthetics. Combining timeless design, quiet performance, and durable construction, the DDML055 delivers reliable security and lasting value for both residential and commercial applications. For more details, please contact us.

Antique Brass Door Lock


Product Overview

Product name

Commercial Project Hardware Mute Mortise Lock with Bit Key-DDML055

Product Model

DDML055

Backset available

50 mm

Distance 

85 mm

Material

SUS201Forend, Strike Plate,  Plastic deadbolt

Forend & Strike plate

Square or Radius

Finish 

Satin stainless steel, Polished stainless steel, Polished brass,Antique brass, Antique copper,Matt Black, Physical Vapor Deposition

Color

Silver,Black,Golden,Antique Brass,Antique Copper

Suitable For Door 

Wooden Door, Metal DoorFire Door, Smoke Door etc.

 Mute Mortise Lock with Bit KeyCommercial Project Door LockCommercial Project Door Lock


Packaging & Shipping


MOQ 

300 Sets

Package

One pair/white box or color box or Blister card in Standard export carton

Sample   time

5-7 working days

Production lead time

30-35 days

Shipping Port 

Jiangmen , China / Shenzhen , China .


Contact us

hotel door lock

D&D Hardware specialized in door hardware products for Wooden Doors& Metal Doors &Glass Doors, such as Door Lock, Door Hinge, Door Handle, Door Closer, Panic Exit Hardware, Door stop, Door Bolt, Glass Hardware etc.


The Door Hardware that we offer are tested to the most stringent international industry standards, including BS EN, CE, UL, ANSI and BHMA, Suitable for Education, Healthcare, Hospitality, Residential and Commercial applications.


More door hardware items include:

1.Door Hinge- UL 10C R38013 & BHMA/ANSI Grade1/2 & CE EN1935 Grade 13

2.Concealed Hinge- BS EN1935, EN1634 Fire Rated & UL 10C R38013

3.Door Lock - CE EN12209 UKCA Fire Rated & UL 10C R40901

4. Door Handle- BS EN 1906 Grade 4, EN1634 Fire Rated

5. Panic Exit Device- UL 10C R40486 & UL305 SA45817 & CE EN1125

6. Door Closer – CE BS EN 1154 & UL 10C R40717

7. Lock Cylinder-BS EN1303, EN1634 Fire Rated

8. Glass Hardware / Bathroom Hardware / Barn Door Hardware



Contact:

David Jian

Mobile:0086-139 2903 7292

E-mail: sales@danddhardware.com



D&D HARDWARE INDUSTRIAL CO.,LTD  
ADD:12th Floor, Building 2, No.898, KeChuang Technical Zone,Jiangmen Avenue, Pengjiang District, Jiangmen City, Guangdong, China   (Postcode:529000)
Https://www.danddhardware.com  
TEL: +86-750-3856396
FAX:+86-750-3856395


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Get Famous Branded Quality at Factory Cost 12th Floor, Building 2, No.898, KeChuang Technical Zone,Jianghai Dist.Jiangmen City,Guangdong,China
   +86 139 2903 7292
   +86 139 2903 7292
  +86 139 2903 7292
 David Jian(Managing Director)
 Ms Judy(Financial / Account Dept. )

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