Labeled Parts Of A Door Lock Jun 2026

The spring-loaded metal piece that extends from the edge of the door into the door frame. It has a curved side to allow the door to click shut without turning the handle.

While the parts of a door lock may vary depending on the type of lock, the basic components remain the same.

Whether you're a homeowner, a DIY enthusiast, or simply someone looking to learn more about door locks, we hope this guide has provided you with a comprehensive understanding of the labeled parts of a door lock.

The piece on the interior side of a deadbolt that allows you to lock or unlock the door manually without a key.

This guide breaks down the labeled parts of a standard cylindrical door lock—the type most commonly found on residential interior and exterior doors. The Exterior Components

When you insert the key into the keyway and turn it, the following process occurs:

Unlike a spring latch, this bolt is not angled. It is a solid block of metal that must be manually retracted with a key or thumbturn, making it much harder to force open. Why Knowing These Parts Matters