Door Lock and Cylinder

Deadlatch and Deadbolt mortise lock set / D&D Builders Hardware Co. located in Taiwan, is a professional custom hardware manufacturer with rich experience in producing the OEM/ODM door and window hardware, building hardware and automotive parts according to customers' individual needs and designs.

6 Series SLIDEback sliding door closer

6 Series SLIDEback sliding door closer

D&D's 6 Series SLIDEback sliding door closer is a semi-automatic style door closer. When the door is opened, the self-closing feature can make the door closed automatically, the smooth closing performs just like an electric style automatic door.The eco-friendly 6 SLIDEback sliding door closer is a non-electrified device, just add SLIDEback sliding door closer on the sliding door to have a door operate like an automatic sliding door with noise reduction, energy efficiency and saving money.

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Glass Patch Lock set with mechanical latch for interior door

Glass Patch Lock set with mechanical latch for interior door

Our glass patch lock PLI-10LR series applies for the fascinating frameless glass doors and it is a simple and elegant lever handle lock set for frameless glass door in the private environment. We developed an extensive series of glass patch lock for single action door with radius shape and mechanical latch, including dummy model, lever switch model and euro cylinder model.

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Door Lock and Cylinder | Door Closer & Hardware Manufacturer | D&D

Based in Taiwan, D&D BUILDERS HARDWARE CO., since 2002, is a Door Lock and Cylinder | door closer & hardware supplier. Main products, including door hinge, door handle, door lock and cylinder, door closer, door accessory and so forth.

TÜV Rheinland & UL certified door closer and hardware production from designing, molding, plastic injection, stamping, forging, die casting to CNC machining, has over 20 years with plentiful experiences in handling various architectural hardware. SLIDEback sliding door closer, the patented connecting design provides various applications for different sliding doors, and the connection and separation switching bar design allow having a door with or without auto-closed function.

D&D has been offering customers high-quality door closer and hardware, both with advanced technology and 15 years of experience, D&D ensures each customer's demands are met.

Door Lock and Cylinder

Deadlatch and Deadbolt mortise lock set

Door Lock and Cylinder - Deadlatch, hookbolt and deadbolt for mortise lock set
Deadlatch, hookbolt and deadbolt for mortise lock set

A door with a lock function is a necessary component of proper door operation. Such as the office door, the accounting room, and the bathroom will require this function to be adequately secure.

The door locks require a pocket, which can cut into the door for locks fitted, including deadbolt, deadlatch, hook bolt, and mortise lock.

Please feel free to view our current items as follows.
If there is any suitable item, please feel free to advise the item number, quantity, finish you need via our company email, DDSALES@DND.COM.TW, and we will get you back shortly.

If you do not find a suitable one, we could provide OEM or ODM service too. Please share some photos with dimensions or drawings, and we will evaluate the possibility of mass production if there is a certain quantity.

  • Barn Door Lock - Sliding Barn Door Lock
    Barn Door Lock
    Sliding Barn Door Lock

    D&D sliding barn door lock can fix on jamb, door, or wall to lock the sliding barn door from inside or outside. The sliding barn door lock can be used on the sliding barn doors for privacy locks to the bedrooms, bathrooms or where privacy and safety are needed are important features to consider.

  • Deadlatch - Standard duty deadlatch
    Deadlatch
    Standard duty deadlatch

    The deadlatch will automatically lock itself whenever the door is closed. This makes leaving the house quicker and you will know the door is locked and safe behind you.The deadlatch offers flexible traffic control during and after working hours. The deadlatch accepts mortise cylinders from either or both sides.

  • Deadbolt - Deadbolt
    Deadbolt
    Deadlock

    The deadlock has a bolt to provide maximum security for a single-leaf narrow stile door. Basically, the locking bolt extends out of the lock allowing it to go into a wall to secure the door. A single metal bolt from the door into the wall if there is someone makes forcing the door open, it is almost impossible when a deadbolt is locked.  Its latch could be produced by the size or shape you request, please feel free to review the following model which we are producing now.If you do not find a suitable type for your new project, please feel free to share your drawings or provide the samples with us, we will evaluate the possibility of the new products for you if there is a certain quantity.Meanwhile, we also can put your brand logo on the product to create your company's brand image.D&D's quality will definitely meet your customer's needs.

  • Hook Lock - Deadlock, Deadbolt with hook
    Hook Lock
    Deadlock and Deadlatch with hook

    Hook Lock is suitable for sliding doors and is easily attached to wood or steel door frames.The lock used in the sliding door needs to ensure that once the lock is engaged it is difficult to release the door unless the key is used to unlock it.If you do not find a suitable size or type, please feel free to share your drawings or provide the samples with us, we will evaluate the possibility of the new products for you if there is a certain quantity.Meanwhile, we also can put your brand logo on the product to create your company's brand image.D&D's quality will definitely meet your customers need~

  • Bottom Rail Deadlock - Bottom rail deadbolt
    Bottom Rail Deadlock
    Bottom rail deadbolt

    The bottom rail deadbolt provides maximum security with a deadbolt locking mechanism. This lock utilizes hardened steel bolts for the limited space of narrow stile doors.It lies horizontally in the bottom rail of ultra-narrow stiledoors which have insufficient vertical space for a lock, and tempered glass doors that have no stile at all. The hardened steel cylindrical bolts allow simple drilled strike holes to minimize the danger for the high-heeled shoes.

  • Mortise Lock - Mortise lock case
    Mortise Lock
    Mortise lock case

    D&D mortise locks are intended for standard duty for schools, hospitals, and commercial buildings where security, durability, and low maintenance are required. These mortise locks are engineered for strength and performance and are precisely manufactured to exacting standards.

  • Cylinder - Mortise cylinder, European profile cylinder
    Cylinder
    Mortise cylinder, Rim cylinder and European profile cylinder

    D&D manufactures mortise cylinders, rim cylinders, and European profile cylinders in Taiwan, they are mostly machined from solid bar brass, offer an abroad selection of models, providing the flexibility required for numerous applications. For some models, material in aluminum or zinc alloy is also available by request.

Press Release

  • Looking for Agents
    Looking for Agents

    We are looking for district agents and dealers, for our hot items, you're welcome to apply for if you have certain confidence and determination.

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  • 6 Series SLIDEback sliding door closer
    6 Series SLIDEback sliding door closer

    D&D's 6 Series SLIDEback sliding door closer is a semi-automatic style door closer. When the door is opened, the self-closing feature can make the door closed automatically, the smooth closing...

    Read More
  • Glass Patch Lock set with mechanical latch for interior door
    Glass Patch Lock set with mechanical latch for interior door

    Our glass patch lock PLI-10LR series applies for the fascinating frameless glass doors and it is a simple and elegant lever handle lock set for frameless glass door in the private environment....

    Read More