Question - plusnuts! Sizes & install - Ram Promaster Forum
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post #1 of 34 Old 03-27-2019, 08:28 PM Thread Starter
portmanteaumads
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Question Question - plusnuts! Sizes & install

Hello friends. I'm getting ready to insulate and bolt in some furring strips for the wall/ceiling paneling on my 2500 high top. Having a really hard time getting any reliable, specific information on plusnuts.
I'm looking for sizes and grip ranges on plusnuts for the existing round holes in the wall and ceiling. I can do the legwork on locating the actual plusnuts (unless someone has a hookup on that) but those specifications seem to be real underground knowledge haha.
Also does anyone have a working link to a decent install tool or are we all using the DIY method?
Thanks so much in advance!
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post #2 of 34 Old 03-27-2019, 09:00 PM
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I think the Rivet Nut catalog (second link) has exactly this information on grip ranges, etc. And, page 28 for tools.


https://www.rivetnutusa.com/plusnut-rivet-nut-rivnut/







https://www.rivetnutusa.com/wp-conte...inalRivnut.pdf
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post #3 of 34 Old 03-27-2019, 09:59 PM Thread Starter
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That's super helpful, thanks! I'm also looking to see if anyone has the information on precisely which ones the Promaster uses. Since I'm assuming at least a few here have used plusnuts and might know which ones they used.

Somewhere else (maybe another forum) I found someone's offhand info that the small round holes everywhere are 0.317 diameter and 0.035 thick, so by their catalog I'd be using the first 10-32 size prebulbed plusnuts? S10PB175, correct?
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post #4 of 34 Old 03-27-2019, 11:50 PM
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Invest in a inexpensive micrometer . A lot of the holes are metric . And get a hand rivnut tool . Steel rivnuts in 1/4-20 and larger get hard to do unless you get the big "$$$" lever tools . There aren't that many big holes to make big$$$ worth it .

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post #5 of 34 Old 03-28-2019, 12:02 AM
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These are handy for precise measurements.




Or if you really don't want to spend much



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post #6 of 34 Old 03-28-2019, 12:33 AM
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Don’t waste your time trying to use holes that are already there get ¼-20 rivnuts and drill your own holes. The hole size is very important ant if you don’t want them to spin.

2014, High Top/159 WB, 2500 gas Promaster camping conversion. https://www.promasterforum.com/forum...ad.php?t=43121
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post #7 of 34 Old 03-28-2019, 07:10 AM
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Use the shank of a drill bit to get the correct size of an existing hole. Put that black Friday 110 piece drill bit set to use.
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post #8 of 34 Old 03-28-2019, 09:02 AM
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Quote:
Originally Posted by keeponvaning View Post
Don’t waste your time trying to use holes that are already there get ¼-20 rivnuts and drill your own holes. The hole size is very important ant if you don’t want them to spin.

...what he said!


And, put a stop on your drill so it doesn't go too deep and hit the outside wall of the van!






Harbor Freight has a kit with a hand Rivnutter, and 4 sizes of rivnuts! Under$20

.

Working on the van, and my website about it! Please visit www.empowersites.com/edsvan or here on the forum
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post #9 of 34 Old 03-28-2019, 09:55 AM
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Having recently gone through this myself, I think it's important to mention (for others who see this thread later) that there is a difference between "rivnuts" and "plusnuts". Plusnuts are also referred to as "crossnuts" and "split rivnuts". There is also something called a "jack nut" which looks a little like a plus nut but is for very light duty and very thin materials. I wouldn't use them in a van except maybe to hold up a trim piece or something.

When looking at Plusnuts, there are two general kinds. "Straight shank" and "pre-bulbed". If you are using a couple of wrenches and a bolt to install them then the pre-bulbed are a little easier to get started.

If you have several to do, and like me you have a bunch of tools in your tool box that come in really handy every now and then on your next project, the actual installation tool is quite nice to have and makes it very easy. It is not the same tool for Rivnuts and Plusnuts. Rivnuts use Astro tool 1442 and Plusnuts use Astro tool 1450

https://www.baysupply.com/2673979/Pr...Co.-Tools-1450

Jay-Cee Rivets has a good selection, and a nice menu interface along the left to find the correct size Plusnut for your needs.

https://www.rivetsonline.com/rivet-n...raight-shank#1


And if anyone is using Rivnuts instead of Plusnuts, I have a new Astro tool 1442 for Rivnuts for sale. I used it for 6 rivnuts. $50 delivered to the lower 48.
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post #10 of 34 Old 03-28-2019, 10:00 AM
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You can find many plus nuts on Amazon, use pre-bulbed as your search. There was a seller on Ebay last year that sold them in lots of 20 with a hand tool (see below). Just substitute a connector nut that the tightening bolt can fit INSIDE. You may need to add a star type washer between the connector nut and plus nut face to reduce spinning. I used over 40 on my build. Recommend using 1/4 20 size.

Also just get a $25 dollar step drill bit, it keeps you from going too deep to fast. Finally from the $60 you saved from getting a rivnut puller tool use it to get a battery impact driver.
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