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Almost all padlocks have it, but hardly anyone knows its purpose: the small hole at the bottom is more important than you think.
Whether for a basement compartment, a locker at the gym, or as a token of love on a bridge, almost everyone owns a padlock. Nevertheless, most people probably haven’t even noticed the tiny hole on the bottom, right next to the actual keyhole. Have you ever wondered what it’s there for? This small detail is quite helpful.
Tiny, inexpensive locks, such as those on a diary, sometimes come without a hole. Models for outdoor use, on the other hand, cannot do without it, because this tiny detail ensures that rainwater entering from above can drain out again at the bottom. If the hole is missing, the internal spring that pushes up the shackle of the lock when it is opened can quickly start to rust. In the winter months, the opening also makes it much more difficult for the locking mechanism to freeze.
But that’s not all. The opening also makes it much easier for you to oil the lock from the inside so that the key turns smoothly. This not only makes it more convenient for you, but also makes the lock more secure. If it is difficult to close, you may sometimes think it is locked when it is not. Brittle material is also easier to break open, or can become an obstacle in an emergency (such as a fire) because it blocks the way.
- source: heute.at/picture: Image by Michael Schwarzenberger from Pixabay
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