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11-04-2006, 11:49 AM
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#1
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Rivet Master 
1984 31' Airstream310
Dunsmuir
, California
Join Date: May 2004
Posts: 1,336
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Rivet Nuts
Hi all, I'm having a lot of trouble with these and was hoping someone could tell me what's wrong.
I'm trying to install some rivet nuts in the side wall of the remodeled bathroom of our 1984 310 Limited MH. I drilled a hole the size of the outside diameter of the rivet nut, screw the nut onto the riveter, push the nut all the way into the hole, and squeeze the riveter while pressing in on the rivet nut. One of two things happens, either the bulge created in the nut ends up outside the hole or, if I squeeze too hard, the riveter pulls all the threads out of the aluminum rivet nut.
Any ideas?
__________________
If you want others to be happy, practice compassion.
If you want to be happy, practice compassion - The Dalai Lama
1984 310 Limited Motorhome
Courtesy Parking (W/S/E/Wi-Fi) on I-5 in Northern California, 70 miles from Oregon border
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11-04-2006, 11:57 AM
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#2
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Rivet Master 

, Minnesota
Join Date: Aug 2003
Posts: 7,721
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Are you sure you're not up against an obstruction inside the wall, like a rib? Either that, or you might have the wrong grip range.
I'm suprised you are pulling the threads out. Are you using the correct size mandrel? If you are using #8 or #10 screws, some have the same threads per inch and can fool ya.
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11-04-2006, 12:12 PM
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#3
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Rivet Master 
1984 31' Airstream310
Dunsmuir
, California
Join Date: May 2004
Posts: 1,336
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Mark,
I'm pretty sure I'm not hitting anything in the back. If there was a rib there I wouldn't need the nut.  I'll check the mandril size but I'm pretty sure I've got the correct one.
As far as the grip range, I'm only trying to grip the inside skin so I don't think the grip range is too small, can it be too large?
__________________
If you want others to be happy, practice compassion.
If you want to be happy, practice compassion - The Dalai Lama
1984 310 Limited Motorhome
Courtesy Parking (W/S/E/Wi-Fi) on I-5 in Northern California, 70 miles from Oregon border
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11-04-2006, 12:20 PM
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#4
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Rivet Master 
1973 Argosy 26
Norristown
, Pennsylvania
Join Date: Sep 2006
Posts: 645
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Quote:
Originally Posted by guy99
Hi all, I'm having a lot of trouble with these and was hoping someone could tell me what's wrong.
I'm trying to install some rivet nuts in the side wall of the remodeled bathroom of our 1984 310 Limited MH. I drilled a hole the size of the outside diameter of the rivet nut, screw the nut onto the riveter, push the nut all the way into the hole, and squeeze the riveter while pressing in on the rivet nut. One of two things happens, either the bulge created in the nut ends up outside the hole or, if I squeeze too hard, the riveter pulls all the threads out of the aluminum rivet nut.
Any ideas?
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Hi guy99; Aluminum riv nuts require special handling. Here is what you must determine; Thickness of material you are installing them into.
Reach on them is very nominal unless you purchased extra
length.
The trick is to have a proper inside diameter heavy washer under the mandrel head, on top of the riv nut [very important]. Otherwise they collapse at the wrong place.
Remember to be gentle when setting aluminum riv nuts or you will pull the threads out. As soon as you feel higher resistance STOP. Fastener that you will put in it will finish the job. But, if the material you are installing them into is more than 0.030" you may not be able to form a collar because of available length.
#8 is rated for only 15 inch/lbs of torque. Get your wife to set them in, you Gorilla. Just a joke, Good luck, "Boatdoc"
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11-04-2006, 01:32 PM
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#5
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Rivet Master 
Airstream Dealer
Corona
, California
Join Date: Feb 2002
Posts: 16,497
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Quote:
Originally Posted by guy99
Hi all, I'm having a lot of trouble with these and was hoping someone could tell me what's wrong.
I'm trying to install some rivet nuts in the side wall of the remodeled bathroom of our 1984 310 Limited MH. I drilled a hole the size of the outside diameter of the rivet nut, screw the nut onto the riveter, push the nut all the way into the hole, and squeeze the riveter while pressing in on the rivet nut. One of two things happens, either the bulge created in the nut ends up outside the hole or, if I squeeze too hard, the riveter pulls all the threads out of the aluminum rivet nut.
Any ideas?
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Rivnuts usually do not work very well in soft aluminum.
All airstream sheetmetal, inside and out, is soft.
Andy
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11-04-2006, 01:39 PM
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#6
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Rivet Master 
1978 31' Excella 500
Venice
, California
Join Date: May 2006
Posts: 1,067
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If the material you are trying to rivet is soft, i.e. some kind of plastic, the bulge wil simply expand it and pull through. Soft, thiin materials use different fasteners. There is a good run down of the various choices in the McMaster-Carr catalogue, or on their website: http://www.mcmaster.com/
There are also several different rivet nuts out there. See: http://www.gesipausa.com/
I use a lot of the Gesipa 10-32 NF nuts and S.S. truss head philips screws in the excella. The Gesipa rivet nuts require their own setting tool but are tougher than the plain rivenuts sold by pop rivet vendors. They have a longitudinally serrated outer barrel that grips the sheet stock when the rivet nut is upset whichhelps prevent the nut from turning (a real nuisance when it occurs). They also come in steel.
__________________
"Not all who are laundering are washed" say Bill & Heidi
'78 Excella 500,"The Silver Pullit". vacuum over hydraulic disc brakes, center bath, rear twin. '67 Travelall 1200 B 4X4 WBCCI 3737
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