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Join Date: Aug 2007
Location: Chesapeake Bay
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Re: Attaching hardware to spars.
Chances are the wall thickness will not be great. I'd opt for rivets, or if possible, through bolting may be an option and is by far the strongest.
I've seen a lot of hardware pull out of a mast that was drilled and tapped.
Merit 25 # 764 "Audrey"