Probrico Privacy Door Knob, Black Round Ball Door Knobs for Bedroom & Bathroom, Locking Door Knobs Without Key, 8 Pack

Probrico Matte Black Privacy Door Knobs offer a classic colonial design with a matte black finish, making them a perfect enhancement for traditional and contemporary homes. These keyless privacy door knobs are primarily suitable for interior doors such as kitchens, bathrooms, studies, and children's rooms.

The product features a strong, high-density knob made of materials with a strong tensile strength and low impurities, ensuring a stable electroplating quality that can withstand a 72-hour salt spray test without corrosion or fading. The full inner ball design provides a secure and stable fit, with a longer riveting position to prevent the ball from skewing or loosening.

The thick, 2.0mm tongue plate material enhances the strength of the door and prolongs its service life. It also ensures a mute, impact-resistant operation, preventing slamming. The sturdy internal structure is made of 65 manganese steel, with a manganese content of 0.9%, providing excellent wear resistance and stability, able to pass the three-level 250,000-cycle wear resistance test.

The package includes the door knobs, solid latch, screws, installation instructions, and all necessary mounting hardware, including a spare long screw. The easy installation makes this a one-person project, and the reversible levers accommodate both right-hand and left-hand doors.

The round ball handle design offers a comfortable, sharp-edge-free grip. The adjustable backset, ranging from 2-3/8" to 2-3/4", allows the latch to fit doors with thicknesses from 1-3/8" to 1-3/4" (35mm to 45mm). The privacy function can be locked from the inside with a turn button and unlocked from the outside with a coin or card in an emergency.

These privacy door knobs are suitable for guest rooms, bedrooms, bathrooms, and other interior locking doors where privacy is a concern. The matte black finish is anti-fingerprint, durable, rust-free, and provides a comfortable grip. With easy installation using only a screwdriver, the Probrico Matte Black Privacy Door Knobs offer a classic, functional, and user-friendly solution for your home's interior doors.

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