The security rating of a hasp should always match the padlock. High-security hasps can be distinguished by different characteristics, for example concealed screws. Hardened steel loops for the padlock's shackle should be concealed inside the hasp by which they provide extra protection against attempts to break the lock open.
Strengths
Hardened steel for extra strength
Seamless eye loop prevents prying
Centre-lock pin resists being driven out at end
Hidden screws and hinge pins for extra security
Applications
Suitable for doors not closing flush, i.e. door leaf and door frame are not level
To be used with a padlock