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  #1  
Old 03-15-2017, 11:00 PM
scsmith scsmith is offline
 
Join Date: Jan 2008
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Default high strength rivet-nut?

Does anyone know of a high-strength, high-quality blind rivet-nut?

the NAS 1330 is an aluminum rivet-nut. I am wondering if there might be a strong steel nut that might exist, maybe by Cherry?
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  #2  
Old 03-16-2017, 04:51 AM
g zero g zero is offline
 
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Default Rivetnut

McMaster Carr has them in Steel and Stainless Steel. I buy them 1/4-20 and larger , not sure about smaller and fine thread .
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  #3  
Old 03-16-2017, 07:52 AM
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Walt Walt is offline
 
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Default

Rivnuts are the devil

Unless you use them in thicker material (which we don't use much on the RV's) and use the keyed units (special install tools), they are guaranteed to 'spin' down the road at some point which makes fastener removal difficult if not impossible.
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  #4  
Old 03-16-2017, 08:22 AM
49clipper 49clipper is offline
 
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Location: Belleville
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Default 49clipper

I agree with Walt. They are a real pain down the road. do not use in less than .040".
Jim
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  #5  
Old 03-16-2017, 10:31 AM
scsmith scsmith is offline
 
Join Date: Jan 2008
Location: Ashland, OR
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Default

I agree in general with Walt's comments, although I have had good luck hand-filing a key notch for the keyed type. None have spun on me. I have used them in non-critical places where if it did spin, I can actually get pliers on them.

In this case, I am looking for a higher strength solution, and they really would be blind. Hopefully a one-time assembly, so as long as they don't spin on first tightening, all is good. The ability to install a flush, blind, nut would save me having to disassemble the part, which would involve screwing up paint, drilling out a ton of rivets, and then having to re-paint.
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RV-8 N825RV
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  #6  
Old 03-16-2017, 10:59 AM
terrye terrye is offline
 
Join Date: Feb 2010
Location: Vancouver, BC, Canada
Posts: 860
Default Rivnut

Here's a link to the rivnut catalog. Five different types available in aluminum, steel, stainless steel.
http://www.bollhoff-usa.com/static/p...version-EN.pdf
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