Those YouTube videos on DIY rivet nut tools

ericc

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I tried one, and it didn't work. The torque was too much and the nut canted out of the hole and expanded in the wrong place. Somehow, the friction is occurring in the wrong place. I'm sure this idea works under ideal circumstances. There were some other videos of more complicated designs that pulled straight on the stud without relying on the rivet nut threads. Maybe these will work better. One example is the one by "Artisan Makes". When I watched the videos, often playing annoying music, I thought the failure mode would be due to the rivet nut spinning, but it locked perfectly. Once the nut starts expanding it must be flush, else it will be pushed out of the hole. The videos didn't state that. Just music.
 
The only rivet nuts i have used that are worth anything, used a compression tool drawing the insert into a collapsible section of the nut which in turn expands to fill the closely drilled hole .
They don’t last very long if the nut is used for frequent service
 
The air needs to be regulated depending on the size of the Riv nut, there is the "butterfly" tool also for manual instalation, but you need a bunch more room.
 
I've used just a piece of tube, a bolt and a washer with success when there wasn't enough room for my manual tool. Spinning wasn't really a problem in my vast experience of quantity two done that way.

Gotta agree with @Ulma Doctor - they're not good for cases of frequent use.
 
I use these pretty regularly at work. If the proper tool doesn't work, (I don't recall, but it wasn't that expensive), then put a nut on a bolt, a washer on the "insert" side of the nut, thread the bolt fully into the insert Stick the insert in the hole, hold the bolt still, and tighten the nut. If one fights and the insert turns with the nut, (they rarely do) , then oil, grease, oil, or otherwise lubricate a couple three more flat washers, put them under the nut. All you've got to do is squish it. If access is crazy bad, or you otherwise can't get it to stay "straight" in the hole, forget the second wrench and clamp the bolt head in a vise grip from any random angle....
 
I have also done my share of rivet nuts. Most recently I repaired a hinge on a storage compartment door of our motorhome. I happened to have a HF Fasten Pro kit left over from repairing door handle mountings on residential metal doors. I used aluminum rivet nuts rather than the more common steel varieties offered by McMaster and other industrial suppliers


I've also used those from McMaster in places where the rivet gun wouldn't fit, or steel rivet nuts are required


 
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