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post #1 of 17 Old 02-08-2012 Thread Starter
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316 Stainless Bolts

Does anyone sell 316 SS bolts, nuts, washers? Seems even the marine supply stores sell mostly 18-8, which I understand is 304 Stainless and will corrode much faster than 316 Stainless.
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post #2 of 17 Old 02-08-2012
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How about these guys??

Hawaii Nut And Bolt - Fasteners

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
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post #3 of 17 Old 02-08-2012
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i expect the 304 will not be a problem in your life time
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post #4 of 17 Old 02-08-2012 Thread Starter
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Originally Posted by sawingknots View Post
i expect the 304 will not be a problem in your life time
In a tropical environment 316 ss is much superior over 304. I am even going with bronze where I can as it is even more superior to 316 ss. 316 ss will suffer from staining, corrosion, stress corrosion. 304 is much worse.
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How about these guys??

Hawaii Nut And Bolt - Fasteners
Checked the on-line catalog and no 316 ss. Gave them a call and they say they can get them, but they need to look into it. Some of the marine stores here in hawaii buy their 304 ss hardware from hawaii nut and bolt. Even the west marine catalog seems to mostly carry 304 and in the larger fastener sizes only 304 is available. Many of the 304 hardware I have seen can be picked up by a magnet (even though ss is not supposed to be magnetic), some may be due to high carbon steel content and maybe some due to work hardening.

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post #6 of 17 Old 02-08-2012
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McMaster Carr sell them :

McMaster-Carr

Bristol 31.1, San Francisco Bay
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McMaster Carr sell them :

McMaster-Carr
I have a hard catalog and checked it out. They do have a selection of 316 SS and can probably find most of what I need, but in the larger screws/bolts only carry the 18-8 (304). A little suprised West Marine who reccomends 316 ss for fasteners in their catalog still carry mostly 304 stainless.
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post #8 of 17 Old 02-08-2012
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Quote:
Originally Posted by casey1999 View Post
Does anyone sell 316 SS bolts, nuts, washers? Seems even the marine supply stores sell mostly 18-8, which I understand is 304 Stainless and will corrode much faster than 316 Stainless.
I suspect you're over thinking this. I have yet to see a builder who uses 316SS fasteners exclusively.

Morris uses/used (when I have been there) 18/8 fasteners by StaFast and they get them from: Standard Fasteneings in New Bedford, MA..

I have yet to see a box of 316 when I have been at the factory but I am going to guess they use them for some fittings.. Morris customers are pretty picky..... 18/8 good enough for a Morris.......

I have almost always used 18/8 but on occasion, where strength is not as important, I will use 316. I get all my fasteners from KL Jack a nut and bolt wholesaler in Maine.. Never had a corrosion or rusting issue.

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Last edited by Maine Sail; 02-08-2012 at 07:57 PM.
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Quote:
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I suspect you're over thinking this. I have yet to see a builder who uses 316SS fasteners exclusively.

Morris uses/used (when I have been there) 18/8 fasteners by StaFast and they get them from: Standard Fasteneings in New Bedford, MA..

I have yet to see a box of 316 when I have been at the factory but I am going to guess they use them for some fittings.. Morris customers are pretty picky..... 18/8 good enough for a Morris.......

I have almost always used 18/8 but on occasion, where strength is not as important, I will use 316. I get all my fasteners from KL Jack a nut and bolt wholesaler in Maine.. Never had a corrosion or rusting issue.
You could be right. But I have had 316 bolts fail on cleats due to what appeared to be crevice corrosion. Looks like you are located in Maine- a cool and rainy environment which stainless likes as opposed to a high relatively dry, with salt laden air tropical environment. I note that riggers specify 316 ss cable for tropics when 304 is ok for non tropical areas.
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post #10 of 17 Old 02-08-2012
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I have been upgrading and replacing all mast and chainplate hardware with 316 ss. I have been buying from B&S Bolt in Norfolk, Va. They have a very very wide selection. I believe they supply many military and local shipyards in the area. The great thing is they will sell it by individual piece. One other thing to remember is quatilty. Everything they carry is mil-spec. They warned me about buying fasteners from other "chain" places as you will not get the same grade quality( check with a magnet). They are resonably priced too. i have purchased(all 316) 30-7/16"x2 1/2" bolts, washers and nylon lock nuts, 100 ss 3/16 rivets, 2 -1/2"X5" bolts with washers and nylon locking nuts and few other misc pieces for my mast step. all of it was around $110. with tax.

One word of caution, you probably know, lubricate the threads...I am using tef-gel.

yes i could have used 304 or 18/8 for about 25-30% less but i figured why not. I did not want to take a chance. especially if i have to remove the corroded hardware in 10-15 years, i would be cursing myself for being cheap!
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Last edited by Cruiser2B; 02-08-2012 at 08:33 PM.
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