The Basics of How Locks Work

Locks are a crucial component of your home’s security system. Understanding how they work can help you as you search for a lock that will best protect your home and possessions.

Most locks have four key parts: the plug, cylinder, pins, and springs. The cylinder is the central component that holds the pins and allows the key to be inserted. When you insert the proper key, the pins will line up and allow the plug to turn. For more of the basics on locks, watch this useful video from Expert Village.

At Armstrong Lock & Security, Inc., we supply and install secure door locks for homeowners throughout the Orlando area. You can learn more about our selection by visiting us online or by calling our office at (321) 800-4982.


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Fast and friendly service with fair pricing. Ian Marin was great! He rekeyed my locks in under an hour. I would definitely recommend this company.

- Amber D.

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