welding

(Yacht Specialties/Merriman binnacle steering manual: https://ericsonyachts.org/ie/resources/merriman-binnacle-catalog.187/ ) ( Edson pedestals: https://backwinded.wordpress.com/2015/12/07/replacing-the-diesel-engines-throttle-shift-and-stop-cables/ also Edson 335 pedestal with Yanmar 3YM30...

Does the discoloration that occurs when welding stainless steel affect its anti-corrosive properties? The reason I ask is that in rebuilding my boom I am eliminating the pop-rivet method of attaching the internal bails and going with a 1/4" machine screw. In welding a 1/4" nut on the back of the...