A spring latch is a type of locking mechanism commonly used in doors and gates. It consists of a spring-loaded bolt that automatically engages when the door is closed, securing it without the need for a key. The latch can be released by turning a knob or lever, allowing easy access. These latches are often made from metal or plastic and are designed for quick installation. They are popular in residential and commercial settings due to their simplicity and effectiveness. Spring latches can be found in various applications, including cabinets, gates, and interior doors.