Padlocks are everyday objects that serve a very important purpose. People use them on bicycles, garden sheds, toolboxes, and gates. They are designed to withstand the elements, as well as vandalism and cutting attempts. However, they also have a little-known feature: a small hole at the bottom that also plays an important role.
Using a padlock is a safe way to protect our valuables from theft. Although it is a small device, it has a big impact and is made of metal. This is why padlocks are prone to rusting due to water and extreme weather conditions. Fortunately, they are designed with this mysterious little hole at the bottom to allow water to drain out.
This prevents rust from forming, extending the life and usability of the padlock.
An alternative to the hole
While this small hole was once considered a revolutionary solution, today there are also fully weatherproof padlocks. These designs ensure that the padlock will keep your personal belongings safe all year round.
Another reason to design a padlock
In addition to rust protection, the small hole at the bottom of the padlock also serves another important purpose. Sometimes, the padlock may get stuck or won’t open even with the right key or code. In such cases, you can apply lubricant through this hole, which will make the lock easier to operate.
Padlocks aren’t the only items designed with hidden or special features. Here are some other useful examples:
Screwdrivers as Wrenches
Automotive mechanics are a useful skill, especially with the increasing number of vehicles. Many mechanics will agree that working on cars can be difficult due to the tight spaces and hard-to-reach crevices. Fortunately, most screwdrivers can be inserted into an open-end wrench, making it easier to reach those tight areas.
Color Swatches on Clothes
Clothing products often come with a small color swatch. Although fewer people know why these days, there are several reasons for this. These swatches help you accurately match the color of the fabric or thread if the garment is torn or damaged. They can also be used to test the effect of detergent or other cleaning agents on the color of the fabric. Essentially, it is a test piece made of the same material to help you properly care for your clothing.
Brass Padlocks and Door Handles
Brass is known for its antibacterial properties, which is why it is often used for door handles, stair railings, padlocks, and other frequently touched items.
Fuel tank indicator
Many people forget which side of their car the fuel tank is on. Car manufacturers have come up with a simple solution: a small arrow or triangle on the dashboard next to the fuel gauge indicates which side the tank is on.
One logo, two functions
The Heinz 57 inscription can be found on many sauce bottles, such as ketchup and steak sauce. It is not only a decorative element: interestingly, it also serves as a guide to where to tap or tilt the bottle to make the sauce flow more easily.
Padlocks and the aforementioned objects are just a few examples of the many clever and practical solutions designed to make our lives easier and more convenient.
