J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Seized Fasteners on Mast

Try a product called "Corrosion X" that's good for the galvanic interaction between aluminum and 316 stainless. when you put them back use a product called "Tufgel". it will act as a barrier and prevent the galling galvanic problem so you can get them out again if you need. those products will work anywhere the situation exists.
Charlie Cox