buy a used oil pan
those threads are getting into your oil pump and thats not good
the strainer can only screen so much and the filter is after the pump.
jb weld is a bad idea
just get a used pan from ebay, etc.
i use the FRAM suredrain so i dont even need to jack the car to drain the oil, and u dont have to remove the bolt either, i think its great since i change my oil every 3000 miles, which is about 28 days for me.
~kris