Bill,
The best way I have found is to drill a shallow depression( similar to counterbore) with a #28 drill, turn a 6-48 screw/w loctite in, let the loctite set up and cut the head off above the surface and peen the screw tightly into the counterbore; then file flush, polish to match. and blue to match. If you don't drill it( assuming a 6-48 hole), where the thread angle meets the surface will leave a small blemish. This is best for me, because I'm not the best welder in the world, and it leaves a smaller area to re-finish anyway.
Mike

Last edited by Der Ami; 10/16/20 06:53 PM.