A mechanical latch is a simple device used to secure doors, gates, or cabinets. It operates by using a spring-loaded mechanism that holds a bolt in place, preventing the door from opening until the latch is released. Mechanical latches are commonly found in residential and commercial settings due to their reliability and ease of use. These latches come in various designs, including slide latches, hook latches, and toggle latches, each serving different applications. They are typically made from materials like metal or plastic, ensuring durability. Mechanical latches do not require electricity, making them a practical choice for many locking needs.