What Is That Extra Hole On The Bottom Of A Padlock?
Aside from the actual lock, the extra little hole is very important. Weirdly enough, it acts as a drain for any padlock you might be using outdoors. Meaning, your lock won’t rust, freeze, and then break on you. It will be in tip-top shape for all of the elements it will face while doing its job outside.
It also is used as a way to oil your lock. No need to hurt your ears with horrible squeaking noises! Long story short, that extra little hole is there to make sure your padlock is always in working condition.