Rivet Nuts or Riv-Nuts

[Warthog]

Have you ever removed a bolt and had the welded nut or the rivet nut come loose? I had one the other day do it to me.

I was working on a windshield wiper washer and the welded nut on the fender came loose. Darn.



Opened the hole slightly and ground off the welds

Broke out the D-100-MIL-1 Blind Fastner Installation Kit that I picked up at GL a couple of months ago.



I had some 5/16" - 18 rivet nuts that I had bought years ago and never used. Perfect fit for the hole.



Installed the gun and ten pumps of the handle and I have a new mounting hole.



Took longer to get the hole ready for the nut then it did to install the nut itself.

 

[MarcusOReallyus]

Beautiful!

What did you pay for the installation kit?

 

[Recovry4x4]

I've been shopping for one of those but not throw away quality.

 

[dstang97]

I always wondered what those were called. Thanks

 

[Recovry4x4]

Rivnuts and gripserts as well.

 

[Warthog]

Beautiful!

What did you pay for the installation kit?

bought four kits for $300. One worked, two need to be rebuilt(seals leaking) and one was missing the gun. Contacted the manufacture and for a mear $1700 I could get a new kit.

One of of these days I will take the two leaking guns apart to see what seals need replacing.

 

[Recovry4x4]

Send me a leaking gun, I will restore it and return it in a few years!

 

[goldneagle]

I bought
[h=1]Marson 39315 Ribbed Rivet-nut Kit[/h]from Amazon.com in 2013. It is a very nice kit that will do Nutrivets up to 1/4". When I bought it it was $87. It is now $122. I used it to replace the nutrivets on my Mep701 generator set with the sound enclosure. A bunch of the nutrivets were missing or spinning freely. It was a paint to remove some of the screws with the nutrivets spinning. Once I did remove the screws I drill them out and installed new nutrivets. Now all the screws are there and come out as designed.

 

[TexAndy]

Eh... for something like that, I'd be tempted to just epoxy the nut back on.

You can get an ounce tube of devcon steel putty on amazon for 4 bucks. And that stuff works great.

 

[Warthog]

Send me a leaking gun, I will restore it and return it in a few years!

You would do that for me? You are too kind.

 

[TGP (IL)]

Nice Kit.
You can also buy the nuts and inserting tool from napa,carquest or any respectable parts/tool store.
For a one time use, buy the nutsert needed, install in proper size hole, screw in bolt with hex nut run all the way on and washer.
Hold the bolt turn the hex nut to collapse and set the nutsert,remove bolt,Done.
TGP

 

[cucvrus]

I have a real simple riv nut installer. It puts in 1/4" and M6 nuts. It is just a tall nut with teeth at the base and a long bolt that you turn and it pulls and collapses the riv-nut in the hole. Works well in a pinch. I also have trhe one from work that can put in 5/16, 3/8" & 1/2" riv-nuts in frames. I seldom use that one. But the 1/4" one is always handy. CUCV door mirrors and such.

 

[Warthog]

The whole unit looks like this



Does rivet nuts from 6-32 up to 3/8" and pop rivets from 3/32" to 1/4"

 

[patracy]

I could have used one of those the other weekend! The rivet just started rotating with the bolt instead. Since it was blocked by the part I needed to remove. I opted to cut the head off the bolt. Ended up just using a nut on it and using the bolt as a "stud" so to speak. Probably going to break or just spin when I try to remove it later on. But it's not a load bearing part outside a few ounces. And it has another one as well that's holding the part as well.

Interesting though on how that works. I would have never thought it was hydraulic.

 

[Another Ahab]

bought four kits for $300. One worked, two need to be rebuilt(seals leaking) and one was missing the gun. Contacted the manufacture and for a mere $1700 I could get a new kit.

One of of these days I will take the two leaking guns apart to see what seals need replacing.

That included a week for two in the Bahamas with meals and airfare I'm guessing, right!?

 

[KansasBobcat]

I usually put some epoxy in the hole and on the outside of the rivnut taking care not to get any in the threads. Also watch the torque. You can break any rivnut loose with enough torque. I know...

 

[Keith_J]

Proper lubrication of the threads is a must. Tricky with aluminum, never use graphite. Only aluminum rated anti seize or pure MoS2 grease.

 

[glassk]

I wonder if anybody knows how these get installed and where they are used,...

 

[Another Ahab]

I wonder if anybody knows how these get installed and where they are used,...

These are threaded pop-rivets (the other hardware is unknown to me):

- Never seen these before until now, but a very neat idea.

- You'd install them like any pop-rivet.

- Drill appropriate sized hole, put pop-rivet in gun, place pop-rivet in hole, and squeeze gun trigger until the rivet sets.

- Bingo; you got a threaded stud permanently installed.

 

[Mg84648]

These are threaded pop-rivets (the other hardware is unknown to me):


View attachment 552568

The first one looks like a pan head rivet, second and third are Hi-lock fasteners, Ahab has it right on the fourth and the last are tab washers used to safety nuts. All with the exception of the first are commonly used in aerospace applications.