I am working on the tail feathers for a GN-1 Aircamper (updated, "improved" Pietenpol) and the plans call for 3/16" 4130 solid steel flying wires, threaded 10-32 on each end for terminal clevises. I can only find 4130 down to 1/4", and I'd like to leave them bare and polished anyway, so thinking of subbing 17-4PH stainless. Mechanical properties are better, corrosion resistance is obviously better, but what I don't know is how it is to thread, and if die cut threads would be more prone to cracking or galling than the 4130. Also galvanic corrosion may be an issue where it mates to the presumably carbon steel AN end fittings and jam nuts. Any thoughts?
Patrick
Patrick
