Engel Locking Hasp for MT Series Fridge-Freezer is a stainless steel hasp that allows your fridge-freezer to be securely closed with an additional pad lock. Installs with 4 screws. The locking hasp is a great way to secure the contents of your freezer. It requires a normal padlock - which is not supplied. They do not interfere with the performance of your Engel if installed properly.