Hasps are often used for security, paired with a padlock.

Security Device

A hasp is a tangible item made of metal, not a general term for fastening.

Physical Object

Recognize a hasp by its hinged metal plate and loop.

To hasp means the act of fastening securely, not just closing.

Hasping something suggests it will be unhasped, or opened, later.

Using hasp as a verb often implies that what's inside is valuable or confidential.