Rivet Nut???

[mhein68]

I found a bag full of these today... Looked them up.. Rivet nuts... But, all the pics on the web show a through hole? I'm not familar with these at all... Cant even remember where I got them? Any help would be great! Thanks!
BTW: They all look as nasty as this one!

 

[BrandonV]

Honestly that looks more like a drive nut for running something with a gear than a rivnut.

 

[nadogail]

Honestly that looks more like a drive nut for running something with a gear than a rivnut.

Agreed

 

[bb29510]

you drill a hole, like in a car fender and a speical tool will pull he nut in from the back side. i saw it on tv

 

[mhein68]

Honestly that looks more like a drive nut for running something with a gear than a rivnut.

I'm not disputing you, but It more resembles a rivet nut or insrtnut, but the solid end is mystery... its 1" log by 3/4" wide at the flat top/bottom. this from Grainger catalog... (mine are steel not aluminum)

 

[BrandonV]

I'm not diputing you, but It more resembles a rivet nut or insrtnut, but the solid end is mystery... its 1" log by 3/4" wide at the flat top/bottom. this from Grainger catalog...

I'm torn. I've installed thousands of rivnuts and I've never seen one look like that... seems too rigid. Most rivnuts are pretty flimsy things.

 

[rlitman]

They're

I'm torn. I've installed thousands of rivnuts and I've never seen one look like that... seems too rigid. Most rivnuts are pretty flimsy things.

Exactly. The whole rivet part means they need to expand into the hole.

This more resembles a PEM nut.

 

[Daedalus]

This more resembles a PEM nut.

Bah! Beat me to it. Was typing the same thing.

 

[mhein68]

They're

Exactly. The whole rivet part means they need to expand into the hole.

This more resembles a PEM nut.

I have to add.. It (might?) be a 3/8" thread inside

 

[pizza]

yeah, pemserts are dope. you need a beefy press for them, though, and if you're pressing them into large objects (like large sheets of metal), i assume that's basically never going to be an option for a home shop.

 

[pizza]

 

[rancherbill]

I don't understand the question. These are a nut for specific applications. You do not 'crush' them like some ones. These are pulled or pressed into a hole like wheel studs. I am sure there of lots of applications where you want to bolt something but you do not need to go through.

 

[pizza]

I don't understand the question. These are a nut for specific applications. You do not 'crush' them like some ones. These are pulled or pressed into a hole like wheel studs. I am sure there of lots of applications where you want to bolt something but you do not need to go through.

actually, you're right. i don't think they're pemserts.

 

[Fav Onefour]

Sleeve nuts. (They also have another funny name.) Those are pretty short. Not many applications would use that length.

They are rare to find sitting around parts bins. I see them included in commercial door closer hardware. The parts kits typically have aluminum sleeve nuts and through bolts in the bag of fasteners to use on weaker doors.

 

[johnre]

These are very commonly used in circuit board manufacturing to provide a mounting location for heat sinks and other mechanical components. And like any other application with them, you have to watch the direction of pull on them.

 

[Jacko264]

They remind me of what is used in cheep furniture pressed onto wood or steel tables legs to bolt parts together
Graham

 

[fteufert]

ITR's/Rivnuts, endless names made in all types of material (aluminum, steel, stainless). Some are open ended and some are closed, and they are available in different grip lengths depending on the material thickness and fastener length.

I use them all at work fairly often

 

[Wrench97]

Closed end rivet nut> https://www.amazon.com/uxcell-M6x23...-Fastener/dp/B01M0VSDKE/?tag=atomicindus08-20

 

[Mike65]

The auto manufacturers used to use the rivet nuts in the roof of 70's/80's era station wagons to mount the roof racks.

 

[no704]

Never encountered one with the big end closed. Not sure how you would even set it? Probably a pem for a specific application.

 

[CraigStu]

I am thinking a special nut for something like assemble yourself furniture.

 

[rayra]

That closed end is more like a blind rivet, rather than a typical 'RivNut'. The OP's piece looks like it is meant to be inserted thru the material from the back end and then resist bein pulled thru by whatever is bolted to it. RivNuts work in the opposite direction. Inserted from the 'outside' into a volume you can't get into or behind, then a compressive tool is used the crush the rivnut against the backside of the surface, retaining the rivnut in place for later bolt attachment.