The door hook pull latch on my mailbox broke. So I designed and printed a replacement. The file was designed in Onshape, and I have linked below to the Onshape file if you need to make any adjustments for your application.
**Update: I added the top latch as well. It is included now with the Mailbox Latch Set files (Step and STL, plus it is in the Onshape file as well).