butchdavis wrote:
mtown,

I believe the steel hardware used on aluminum trailers is usually good quality stainless. The trailers are usually welded so the use of bolt-ons is minimal. Our aluminum trailer non-aluminum parts are "potted" to prevent/minimize bimetallic corrosion. The torsion axle and hubs, etc are an exception although the axle attachment at the frame is insulated with rubber or neoprene sheet.

Three years of year round salt water use and so far no visible corrosion with the exception of some light rust on the steel winch and landing jack.

Of course for Phil's use in fresh water only it's a non-issue except possibly for resale.