I use plastic milk bottle material to separate the stainless steel fitting from resting on the aluminum spar. I also use aluminum rivets .A dab of caulk under the head before you pop rivet the rivet will give you years of safe use. I have removed aluminum pop rivets from my Monty 17 boom that were in there for over 30 years with no protection against the ss fitting they held to the boom and the rivets had no corrosion on them at all. Aluminum is plenty strong for the forces you will encounter sailing your 15. Good luck, Tom B On Wed, Oct 21, 2015 at 3:39 PM, Tyler Backman <casioqv@usermail.com> wrote:
I am planning to add an outhaul and second reef point hardware to my M15, and have some questions:
-What is the recommended way to mount hardware to the boom? I don't want to have stainless rivets fail from galvanic corrosion. I've thought about using plastic shoulder bushings and bolts, but that wouldn't let the hardware mount perfectly flush.
-Does anyone have hardware recommendations for the reef point and outhaul?
-Is an internal outhaul worthwhile?
Sincerely, Tyler Davis, CA M15 #157 "Defiant"