What are the parts of a lock called?

## What are the parts of a lock called?

1. **What are the parts of a lock called?**.

The main parts of a lock are as follows: .

- **Keyway**: The slot where the key is inserted.

- **Key pins**: Small pins inside the lock that are raised and lowered by the key.

- **Driver pins**: Pins that sit above the key pins and prevent the lock from opening without the correct key.

- **Springs**: Provide tension on the pins to keep them in place.

- **Cylinder**: The part of the lock that contains the key pins and driver pins.

- **Shear line**: The gap that separates the key pins and driver pins, allowing the lock to turn when the correct key is inserted.

- **Plug**: The part of the lock that rotates when the correct key is inserted.

- **Cam**: The part of the lock that interacts with the bolt or latch to operate the locking mechanism.

- **Bolt or latch**: The part of the lock that extends into the door frame to secure the door.

- **Faceplate**: The plate on the edge of the door that covers the lock mechanism.

2. **How do these parts work together to keep a door locked?**.

When a key is inserted into the keyway, the key pins and driver pins align along the shear line. This allows the plug to rotate, disengaging the bolt or latch from the door frame and allowing the door to open. Without the correct key, the pins do not align at the shear line, preventing the plug from rotating and keeping the door locked. The springs provide tension on the pins to keep them in place until the correct key is inserted.

By understanding how each part of a lock functions and interacts with the others, we can see how they work together to provide security and keep a door locked until the correct key is used.

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