Any security solution you choose is only as good as the weakest link. For example, using a high security hasp with a cheap quality padlock (or vice versa), is false economy.
What's good about these 'Padlock and Hasp' bundles, is that the security levels of all components in the pack match. This saves you the effort of trying to work out what's compatible with what and which padlock will actually fit that hasp!
...and they'll save you money as well