Replies to This Discussion

Permalink Reply by Dave Z on October 11, 2012 at 5:35pm

For rails and all topside, no problem.  Use it all the time.   At water line and below, SI bronze.

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Permalink Reply by Jason Knight on October 11, 2012 at 5:59pm

Thanks Dave, I will order some up.

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Permalink Reply by Phillip Westendorf on October 11, 2012 at 8:04pm

Jason,

304 Stainless is the most common grade of Stainless and is common at most local fastener stores, big box stores, etc.

316 is a Marine Grade and has higher corrosion resistance.  Jamestown Distributers handle the Marine Grade Fasteners in Carriage Bolts as well as Silicon-Bronze Bolts.

Just my $0.02 worth.

Dorf

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Permalink Reply by Phillip Westendorf on October 11, 2012 at 8:12pm

Dave/ Jason,

The technical reason not to use Stainless Steel below the waterline:  "Stainless Steel's Corrosion-resistance can be adversely affected if the component is used in a non-oxygenated environment, a typical example being underwater keel bolts buried in timber".

who'd of thunk it, eh!

Dorf

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Permalink Reply by Jason Knight on October 14, 2012 at 1:47pm

Thanks for the info guys!

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Permalink Reply by Bob bryan on October 20, 2012 at 10:08am

316 will work much better, Dorf is right though if stainless is underwater most the time it will corrode. We had a main drive shaft ,316, on a boat I used to run that had a few too many years with water around the shaft at the stuffing box and it became pretty pitted, no rust like with 304 but bronze underwater is better choice.

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