Tri Mark Lock

I don't have one of those latches. On a previous TT that I once owned the last owner had just made a couple of plates he attached to the door with screws to cover the hole. Then he drilled a round hole in those plates and used a standard house door knob and latch. The knob stuck threw the original hole in the screen door just fine. I did have to figure out a new way to attach the screen door to the outside door though as the original attaching thing would not longer work.

So what I'm trying to say is : Can you modify it and just use a regular household door knob ?