Door lock Legrand Drivia model 401391 — mechanical lock for interior doors

Legrand Drivia model 401391 is a mechanical door lock designed for interior doors. It provides a simple and reliable latch and locking function compatible with standard door preparations, intended for use in residential and commercial interiors where an electronic solution is not required. The lock is suitable for bedroom, bathroom, office and utility doors and fits common door thicknesses and cutouts used in interior carpentry.

Advantages

The mechanical construction ensures consistent performance without power supply or batteries, reducing maintenance needs. Its compatibility with standard door preparations simplifies installation and replacement in existing doors. The lock offers a discreet and compact design suitable for a range of interior styles and provides a dependable latch and locking mechanism for everyday use.

Suitable for

• Residential interior doors such as bedrooms and bathrooms
• Office or commercial interior doors with basic privacy needs
• Utility rooms, storage closets and corridors
• Replacement of existing mechanical locks in standard door preparations

Key specifications

• Type: mechanical interior door lock
• Function: latch and privacy locking for interior doors
• Compatibility: designed for standard door preparations and fittings
• Application: residential and commercial interior use
• Mounting: mortise-style installation for standard door thicknesses

How to use

Install the lock into an appropriate mortise cutout in the door following the manufacturer’s installation instructions and local building standards. Fit the latch and strike plate, align the handles or knobs with the spindle, and secure with screws. After installation, test the latch operation and locking function to ensure smooth movement and correct alignment with the strike plate.

Usage recommendations

Use this mechanical lock on interior doors where simple privacy or basic security is sufficient. Regularly check and tighten mounting screws and keep the latch mechanism free of debris to maintain reliable operation. For wet-room applications, ensure the selected hardware and surrounding door materials are suitable for higher humidity environments.