Interior door latch upgrade

I drive a lot with my Bigfoot TC in Baja where some roads are brutal - dirt, potholes, topes (speed bumps), etc etc. For years I've been frustrated by interior doors (and fridge doors) flying open while driving. My current latches are pics below (factory-installed) - they are woefully inadequate.

Does anyone here know where I can get upgraded door latches that will not fail no matter what? I'm guessing it might only be available as a sailboat hardware part. Anyone done this or can recommend something? Thx, Rob