Attività

How Padlocks Work

Learn about the standard iron padlock to understand the main parts, how they work and also how to bypass the mechanical security features to pick the lock.

With thanks to Squarespace for sponsoring this article. Go to Squarespace.com for a free trial and when you’re ready to launch, go to pace.com/engineeringmin… and add code “ENGINEERINGMINDSET” at checkout to save 10% off your first purchase of a website or domain.

Padlocks come in many shapes colours and sizes. They have been around for hundreds of years, ranging in complexity of design by different people and civilisations depending on the technology and manufacturing processes they had available. With the industrial revolution came the mass-produced padlock which eventually settled on a pin tumbler design. Called so because inside are some pins and a barrel which rotates or tumbles over.

These are strong mechanical locks which are easy to mass produce and we find them used for everything from keeping our bikes where we left them to symbolising the everlasting love between two people on a bridge, and then throwing the key away to ensure it can’t be undone. But these types of locks, especially the cheap ones, can be unlocked without a key if you know the correct method and once we understand how the lock works we’ll learn how to pick the lock.