1/2-20 Time-sert sleeve for oil pan drain ?

I do the welded nut thing alot on TF trans, so I can drain the trans without getting a face full. If you go this route, the pan needs to be removed, and the nut welded on the outside of the pan. That way, the nut won't keep that small amount of oil in the bottom of the pan. I would tig weld it for best results.