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Go Back   SailNet Community > On Board > Gear & Maintenance > 316 Stainless Bolts
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Thread: 316 Stainless Bolts Reply to Thread
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Topic Review (Newest First)
02-09-2012 11:53 PM
fallard Casey1999:

Jamestown Distributors (wwww.jamestowndistributors.com) carries 316 SS bolts, washers, nuts, and a lot of other, hard-to-find hardware.

I replaced a 1 1/2" diameter 304 SS keel pin about 10 years ago, when I started getting water weeping past the seals due to pitting corrosion. We used 316 SS for this below-the-waterline application and haven't had any more problems. Unfortunately, this was not a catalog item and had to be custom machined.

Agree with some other folks that you might be overthinking this unless you have a specific requirement for 316 SS.
02-09-2012 10:53 PM
mdbee I am about to buy quite a few fasteners from Fastenal. I was going to go with 316 but the salesman said they don't sell many because they are 3x the cost. I am reconsidering my options, especially in view of MainSail's comment.
02-09-2012 09:44 PM
fryewe Go to the McMaster-Carr website and browse their fasteners. I have found no better selection or service. If they don't have 316SS in the size you need, you can always check out the bronze fasteners.

Or you can use 18-8 and inspect or replace them as needed.
02-09-2012 12:45 PM
casey1999
Quote:
Originally Posted by Cruiser2B View Post
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!
Great, that is what I was looking for. Good they sell small quantities- don't really need a box of 100 of some items. Like you, I like to do things once and correct the first time.
Regards
02-09-2012 10:28 AM
k8edidski parts at online at sailboatjunkyard.com
02-09-2012 09:09 AM
CapnBones fastenal.com If you can't find what you want on the site just call a local store, or if none are local just whichever sounds nice and they can find it.
02-09-2012 03:54 AM
mdbee " In Type 316 stainless, the chromium content is lowered from 18% to 16%, however, the nickel content is raised to 10% and 2% molybdenum is added to the mixture. This change in the chromium/nickel ratio and the addition of the molybdenum increases the resistance to chlorides. This is why Type 316 stainless is often used in more corrosive environments where the material will be exposed to chemical, solvent, or salt water corrosion and makes it the preferred material for marine construction."

http://www.portlandbolt.com/faqs/18-...tainless-steel
02-08-2012 09:31 PM
Cruiser2B 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!
02-08-2012 09:19 PM
casey1999
Quote:
Originally Posted by Maine Sail View Post
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.
02-08-2012 08:52 PM
Maine Sail
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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