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Wildes Meadow, NSW, 2577
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Forums > Windsurfing General

fin bolts

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Created by choco > 9 months ago, 31 Oct 2013
choco
SA, 4082 posts
31 Oct 2013 2:33PM
Thumbs Up

Purchased some fin bolts from these guys recently bloody great value.


http://www.ebay.com.au/itm/Stainless-Steel-PAN-Machine-Bolt-Screws-Nuts-Washers-M6-300pce-G304-Kit/230951618204?rt=nc&_trksid=p2047675.m1851&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D163%26meid%3D2361937370401981883%26pid%3D100005%26prg%3D1088%26rk%3D2%26rkt%3D4%26sd%3D230947970939%26

Carantoc
WA, 6949 posts
31 Oct 2013 2:08PM
Thumbs Up

You didn't get 304 stainless did you ?

Doesn't 304 corrode in salt water ? Especially if you screw them into brass.

I am sure you need 316 grade to not corrode ??

DunkO
NSW, 1147 posts
31 Oct 2013 6:29PM
Thumbs Up

Nah ideally 408, but don't know where you get them.

From working on sea water plants I can tell you 316 isn't that brilliant, I know there is different qualities.

408 is speced for sea water

FormulaNova
WA, 14891 posts
31 Oct 2013 4:10PM
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Select to expand quote
Carantoc said..

You didn't get 304 stainless did you ?

Doesn't 304 corrode in salt water ? Especially if you screw them into brass.

I am sure you need 316 grade to not corrode ??



I had this question from the local stainless supplier. I ended up buying some 304 and some 316. The price difference was too much for me.

The screws are only in the brass insert for a day at a time, so I doubt there will be much corrosion if any. On the other hand, I have used zinc plated steel a few times, and they don't take too long to corrode at all. Usually in my sail bag after a few days, but I would never leave them in a fin unless I never wanted to get it out.

choco
SA, 4082 posts
31 Oct 2013 7:18PM
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I sail mainly in fresh water but even if they do corrode got plenty of them

keef
NSW, 2016 posts
31 Oct 2013 7:55PM
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I brought some 6mm zink plated barrel nuts from Bunnings about $3.50 for 4 nuts , used them in one fin and so far so good after 2 months, even if you use them as a quick replacement there better than nothing

KA360
NSW, 803 posts
31 Oct 2013 9:24PM
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This Ebay seller from Greece has plenty of handy parts including boomgrip,batten tensioners,oversized footstrap screws(for stripped inserts),footstrap plugs and europins

keef
NSW, 2016 posts
6 Nov 2013 10:49PM
Thumbs Up

chocko thanks for sharing , my box of goodies arrived today and a good match for the zink coated barrel nuts, just have to see which will be the first to corrode first



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Forums > Windsurfing General


"fin bolts" started by choco