Durabuilt Hard Case Latches

'Left' and 'Right' latch models are labeled as viewed from the perspective in the reference photo (handle side closest to you).

Print Settings

I printed this as solid as I could get it with three perimeters on a 0.4 nozzle. Nothing about this build requires fine detail, so dropping the resolution is fine.

I printed it vertically with the open end down and supports for the tab on the underside of the latch (the piece most prone to breaking). In this way, you'll get healthy flex for needing to bend that tab to snap it onto the case, and good impact resistance when sliding it back and forth once installed.