1. Materials and design
With a padlock made from cheap materials, a thief can easily break it with simple tools such as a hammer, whereas a well-engineered padlock made from the likes of alloy steel or brass is a lot stronger and more theft-proof. If you’re using your padlock outside, a weatherproof padlock is essential and if you’re using it around water – for example, on a boat – make sure it’s waterproof too.
This is the silver hoop at the top. Ideally, get a padlock where the shackle is mostly hidden so cutters can’t get anywhere near it.
3. Padlock uses
The use of padlock is also an important standard for padlock selection. If you just need to secure an indoor locker full of documents then a $5 lock is probably fine. For a shed full of valuables, it’s worth paying a lot more for a properly secure padlock.
4. Certification certificate.
Padlocks with certification certificates tend to be more convincing and more reliable. If the padlock has CE or ROSH certification, it must be safe and allowed to be sold in Europe, the United States, and other countries. If you buy a padlock that is not allowed to be sold, it is easy to have security concerns.