This may or may not be relevant but a few years ago I had a big Keter storage box that I kept bikes in and padlocked when it was closed up. One day the key broke off in the padlock. I don’t know what peed me off more - the fact the key broke in the padlock of the fact it took me 30 seconds to hacksaw off the security clasp and get into the box. Plastic doesn’t make for secure storage