Get a tap and die set. Very affordable at harbor freight.
You will need a male and female 3/8" - 16 thread.

When picking up a new game: Make a note of any leg bolts that don't come out smooth.
Tap those holes when you get home.

Check the bolts: the threads on at least one of those is messed up. Run it through the female tap to clean it up.
Note: You can run all the bolts through in a hurry with an impact drill and socket.

When reinstalling the bolts, if you get something hanging up; STOP! Back it out and try again. Don't be the ass that cross threads.