Black Patio Door Plunger Lock Sliding Glass Door Security Lock (1/4″ Steel Pin)

The Black Patio Door Plunger Lock is a secondary security device designed to help prevent sliding patio doors from being opened from the outside. Commonly installed on sliding glass doors, this lock provides an additional layer of protection by restricting door movement when engaged.

Color: Black
Material: Polycarbonate
Pin: 1/4″ Steel
Pin Length (Locked Position): 13/16″
Application: Sliding Glass Doors
Part Number: SEC-145BL

Constructed with a durable polycarbonate housing, the lock is built to withstand everyday use while maintaining reliable performance. The unit features a 1/4″ steel pin that extends into the door track or frame when activated, helping secure the door in place. In the locked position, the steel pin extends 13/16″, effectively limiting door movement and enhancing security.

Finished in black, the plunger lock complements darker sliding door frames and hardware finishes while maintaining a clean, modern appearance. The simple push-style mechanism allows for quick engagement or release, making it easy to secure the door while still allowing ventilation if partially opened.