Black Cylinder Lock 40 mm Key / 50 mm Thumb Turn | Door Hardware DoorsFranchise

The Black Cylinder Lock – 40 mm Key / 50 mm Thumb Turn is a modern interior door locking solution designed for projects where privacy and convenience are required. Featuring a key operation on one side and a thumb turn on the other, this cylinder is ideal for bathrooms, master bedrooms, private offices, and controlled-access interior spaces.

Finished in matte black, the cylinder integrates seamlessly with contemporary door hardware, black handles, and hidden door systems. Manufactured to European standards, it ensures smooth operation, durability, and stable performance under Saudi and GCC climate conditions.

For franchise partners, this cylinder is a high-rotation stock product, commonly specified in residential and hospitality projects and frequently sold together with door handles and interior door systems.

Key Specifications

Product Type: Euro profile cylinder lock

Configuration:

40 mm — key side

50 mm — thumb turn side

Finish: Matte black

Operation: Key / thumb turn

Material: High-quality metal alloy

Application: Interior doors

Compatibility: Importa doors, concealed doors, standard interior doors

Use Type: Residential & commercial interiors