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Grounding Thru-Hulls

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I understand this is not a Crusader question, but you all have great knowledge, this is the best place to ask.

I am replacing a broken plastic thru-hull fitting with a stainless one. On the new fitting there is a screw which I
assume is for grounding. Is it really necessary to ground this one fitting, about a foot above the water line. I have
plenty of #8 AWG, may even have some green left. If I should, then is it better to run it to one of the closer
salt water intake thru-hulls, i.e. salt water washdown is the closet.

Thanks in advance for any advice...
 
Good on you for getting rid of the plastic fitting. May I ask which manufacturer did this?
The fact that the fitting is above the water line negates any need for bonding or grounding. I personally don't agree that it's necessary regardless.
 
I must have 8 more plastic thru-hulls, over time, I plan on replacing them one-by-one. Having just finished the first,
hopefully this is the worst location, and the others will be easier to get to. The boat is a Tiara. I purchased a 1 1/4
Groco thru-hull for $24.00 yesterday. Next time, I will purchase online and save money, I think. Next project is the
fuel sending unit, when I added gas last week, my fuel gauge stopped working. It must have been shocked by the
fuel prices.
 
Agree; I don't think bonding/ground a small above-waterline metal device performs any function. Since I have a SSB radio on my boat and it sits in the salt 12 months of the year, I do bond a lot of stuff, but above water thru hulls are not one.
 
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