Padlocks offer extra security and are also small, hardy, convenient to use, and cheaper than door locks.
Other security measures include installing automated doors, fingerprint detectors, facial scanners, and voice-activated systems.
However, many still rely on the good old-fashioned padlock, but how many have noticed the tiny hole at the bottom?
It may seem useless and out of place, but it was designed to serve several purposes.
The tiny hole expels water that may accumulate over time due to high humidity. This helps the mechanism of the padlock to remain unaltered over time.
Furthermore, the tiny opening allows the padlock to remain lubricated to avoid rusting.
When the water is drained, the padlock cannot freeze in very cold temperatures.
"If water were to get trapped inside the small metal vessel and then freeze in lower temperatures, the expansion of the ice could break the internal mechanisms," explains Family Handyman.
You can also spray synthetic padlock lubricant into the hole when the gadget is stuck, and the key won't turn properly.
"Insert the appropriate quality lubricant into the hole, let the lock stand for a bit, and then attempt to open the padlock.
"Repeat the process if need be. Remember to check the manufacturer's specifications regarding what lubricant they recommend for your padlock," Twenty-First Security advises.
Homeowners are advised to lubricate their locks every three to six months to enhance their performance.
Not all padlocks have extra holes; some cannot be found at the bottom but on the sides.
