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cannot remove fin barrel nut
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qwertyjjj



Joined: 09 Jul 2015
Posts: 98

PostPosted: Wed Jul 29, 2015 8:14 am    Post subject: cannot remove fin barrel nut Reply with quote

One of the fin barrel nuts (for the screw) seems to have lost its thread so I thought I'd get a replacement and also replace the one on the 2nd fin whilst I'm at it. However, I can't seem to remove it. I tried turning it with a screwdriver, but the metal just breaks off (looks like it's a bit corroded). I tried putting a screwdriver on it and then hammering it but it won't drop out.
Any ideas?
Also, is there anywhere I can get these for cheap?
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hilton08



Joined: 02 Apr 2000
Posts: 486

PostPosted: Wed Jul 29, 2015 9:19 am    Post subject: Reply with quote

I would try re-tapping the threads before you replace the nut. Usually it is just minor damage to the threads from cross threading or using the wrong screw (US screw in Metric nut or vice-versa) which can be cleaned up pretty easily with the right tap.
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johnl



Joined: 05 Jun 1994
Posts: 1329
Location: Hood River OR

PostPosted: Wed Jul 29, 2015 9:38 am    Post subject: Reply with quote

Big Winds has them and they are cheap (metric and american, get the right one). I never had a problem removing one before. Most likely it is an oxcide build up that is causing it to stick. My chemistry background is rusty so I would go with soaking it overnight in freshwater. Then placing it on wood with an opening below the screw and using a punch to gently hammer it out.

I'm not as sure about retaping. They are made out of a relatively soft metal. My experience is if the threads are gone they are gone. A slight misthread can be resolved with a tap or properly rethreading the screw. The screw is a harder metal than the barrel nut.
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qwertyjjj



Joined: 09 Jul 2015
Posts: 98

PostPosted: Wed Jul 29, 2015 9:50 am    Post subject: Reply with quote

Can't re-thread, the screw just goes right in and out not gripping onto anything.
Do hardware stores have them?
Do they have to be brass?
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isobars



Joined: 12 Dec 1999
Posts: 19931

PostPosted: Wed Jul 29, 2015 10:32 am    Post subject: Reply with quote

Brass.
Windance, Big Winds, any well-equipped WSing shop.
If you have to worry about the price of a barrel nut, you're in the wrong sport. Smile
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johnl



Joined: 05 Jun 1994
Posts: 1329
Location: Hood River OR

PostPosted: Wed Jul 29, 2015 10:44 am    Post subject: Reply with quote

qwertyjjj wrote:
Can't re-thread, the screw just goes right in and out not gripping onto anything.
Do hardware stores have them?
Do they have to be brass?


You want them soft. In theory in the case of an impact it would fail before ripping your finbox out. I'm not sure how accurate that is in reality... But it is a press fit. So friction is the only thing holding it in...
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qwertyjjj



Joined: 09 Jul 2015
Posts: 98

PostPosted: Wed Jul 29, 2015 10:44 am    Post subject: Reply with quote

isobars wrote:
Brass.
Windance, Big Winds, any well-equipped WSing shop.
If you have to worry about the price of a barrel nut, you're in the wrong sport. Smile


It's not that I can't pay for it, it's just that $7 for something that costs like $0.20 is a bit ridiculous (that's like 35 times what it should be).
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isobars



Joined: 12 Dec 1999
Posts: 19931

PostPosted: Wed Jul 29, 2015 11:47 am    Post subject: Reply with quote

Packaging, shipping, individual handling, tariffs, more shipping, distribution, more shipping, more handling, display space, inventory costs, heat, rent, salaries, taxes, two cents for Planned Parenthood, carbon crap, unit vs pricing by the ton ... you know the drill. The $15 shirt I'm wearing probably cost Jack Ma 13 cents in Bangladesh. No wonder he's smiling.

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eastfork



Joined: 10 May 2007
Posts: 20

PostPosted: Wed Jul 29, 2015 12:13 pm    Post subject: Reply with quote

They don't cost 20 cents.
They are easy to replace and if you need I can do it for you.
Jeff
Vector Fins Maui/Hood River
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qwertyjjj



Joined: 09 Jul 2015
Posts: 98

PostPosted: Wed Jul 29, 2015 12:21 pm    Post subject: Reply with quote

eastfork wrote:
They don't cost 20 cents.
They are easy to replace and if you need I can do it for you.
Jeff
Vector Fins Maui/Hood River

Ikea have some I think in the free replacements section of their stores?

Very Happy
Wink



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