Any reason not to pop rivet a gooseneck? - SailNet Community
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Any reason not to pop rivet a gooseneck?

My 30 foot boat has an aluminum thin walled mast and the screws that secure the gooseneck don't have a backing plate. I need to get the gooseneck secured by Sunday and don't have time to pull the mast.

Is there any reason I should not pop rivet it? Would stainless or aluminum rivets be better?

Thanks...

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Re: Any reason not to pop rivet a gooseneck?

Should be OK.. I'd favour SS, I think.

If you're near a source you might look into 'rivnuts'.. never used them yet myself but they seem like a good alternative.
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Re: Any reason not to pop rivet a gooseneck?

Those look pretty cool...

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Re: Any reason not to pop rivet a gooseneck?

That rivnut does look nice . But you need it done faster (sorry Ron) hehe . SS for sure , probably no smaller than 3/16 I'm thinking 1/4 depending how many holes you have , and for that you need a big pop gun . My WM loans the big pop gun . Don't forget some kind of sealant like tef gel .

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Re: Any reason not to pop rivet a gooseneck?

So a tool like this?

https://www.amazon.com/Astro-Pneumat...XWHFWW1Z91JB08

The mast is curved though, would it still work?

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Re: Any reason not to pop rivet a gooseneck?

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Originally Posted by Markwesti View Post
That rivnut does look nice . But you need it done faster (sorry Ron) hehe . SS for sure , probably no smaller than 3/16 I'm thinking 1/4 depending how many holes you have , and for that you need a big pop gun . My WM loans the big pop gun . Don't forget some kind of sealant like tef gel .
Six holes, 3 on each side. And I believe each is 1/4 20. So yeah, big. The rivnuts have the advantage that I could remove the gooseneck, which is appealing. I have to see if I can find SS rivnuts.

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Re: Any reason not to pop rivet a gooseneck?

How is a rivnut removed if it does not work out?

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Re: Any reason not to pop rivet a gooseneck?

http://www.aimfasteners.com/rivnut.html

I got stainless "plusnuts" from a distributor they recommended local to me. Also the basic tool, use with a couple wrenches.

A beautiful thing.
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Re: Any reason not to pop rivet a gooseneck?

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Originally Posted by jarcher View Post
How is a rivnut removed if it does not work out?
You'd have to drill it out - and if it doesn't go in tight like it should it will probably want to spin. Maybe a vise grip on the edge of the outer lip to prevent that while you drill. The same issue can crop up when drilling out pop rivets.

But.. seems like a pretty nice way to get good holding (decent thread depth) in a thin wall... and no special tools needed.

oops.. edit: just re-read the post above.. there is a tool required?

Ron

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Re: Any reason not to pop rivet a gooseneck?

Thanks everyone! I ordered the tool I linked above which sadly comes with zinc rivnuts, and I also ordered a bunch of stainless rivnuts in metric and english sizes. Amazon Prime free two-day shipping to the rescue! I can do this Friday evening or Saturday.

I'm wondering though, what keeps the rivnut from spinning while I'm tightening the screw? I saw one vides where it seemed they were cutting a notch in the hole the rivnut goes into but I didn't see any rivnuts that had some kind of flange or whatever to go into the notch.

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