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Re: How to fix the threads?
[Re: mopower440]
#1697322
11/10/14 11:30 PM
11/10/14 11:30 PM
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Joined: May 2007
Posts: 1,443
Maryland
Dads426
pro stock
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pro stock
Joined: May 2007
Posts: 1,443
Maryland
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I use nut inserts. Various sizes available. Work great for holding a mirror on the body of a car. McMaster-Carr Google nut inserts as there are YouTube vidoes on how to install them.
2012 422 Allstars NSS Champion
2013 422 Allstars NSS Champion
2014 422 Allstars NSS Champion
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Re: How to fix the threads?
[Re: mopower440]
#1697323
11/10/14 11:48 PM
11/10/14 11:48 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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the next size up Metric bolt might do it, jamb it in there & with that, slightly file the hole (as needed). EDIT better/more professional might be to run a metric tap in there & get it dead on, wouldn't take but a minute or two
Last edited by RapidRobert; 11/10/14 11:50 PM.
live every 24 hour block of time like it's your last day on earth
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Re: How to fix the threads?
[Re: burdar]
#1697326
11/11/14 01:05 AM
11/11/14 01:05 AM
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Joined: May 2005
Posts: 4,707
Florida
BDW
master
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master
Joined: May 2005
Posts: 4,707
Florida
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Quote:
The same thing happened to me. The original screws have a finer thread then a regular sheet metal screw. I was able to put a nut on the back side and get it nice and tight. This was on a Challenger so I could reach right in through the cowl vent hole.
Same here, ammeter was jumping all over the place. Once I figured out it was the loose bolts, nut on the other side fixed it.
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Re: How to fix the threads?
[Re: BDW]
#1697327
11/11/14 05:09 AM
11/11/14 05:09 AM
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Joined: Mar 2011
Posts: 1,653
Cut and Shoot, TX
kentj340
top fuel
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top fuel
Joined: Mar 2011
Posts: 1,653
Cut and Shoot, TX
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For stripped screws in sheet metal, put a bent piece of wire in the hole and re-try the screw. You can also use a piece of nylon fishing line.
If you don't see two dolphins, you need a vacation.
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Re: How to fix the threads?
[Re: kentj340]
#1697328
11/12/14 11:45 AM
11/12/14 11:45 AM
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Joined: Jun 2004
Posts: 3,319
Chicago Burbs
sthemi
master
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master
Joined: Jun 2004
Posts: 3,319
Chicago Burbs
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Quote:
For stripped screws in sheet metal, put a bent piece of wire in the hole and re-try the screw. You can also use a piece of nylon fishing line.
I have used .030 Mig wire single or doubled if it is really too big, works fine and helps the electrical contact.
cut an inch of wire, make a V out of it, put one end in the hole and the other outside the hole. That takes up the extra room. 
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Re: How to fix the threads?
[Re: 67_Satellite]
#1697331
11/13/14 01:04 AM
11/13/14 01:04 AM
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Joined: Jan 2003
Posts: 2,863
middle Tennessee
mopower440
OP
master
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OP
master
Joined: Jan 2003
Posts: 2,863
middle Tennessee
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Quote:
Is this in the firewall of the pictured dirt track car?Move it sideways or up/down and drill 2 brand new holes.Or just run the screws in and let them make the new holes.
No, not in the dirt car, its in my dart, dont really want to drill any holes in her anywhere..
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Re: How to fix the threads?
[Re: Dads426]
#1697332
11/30/14 10:13 PM
11/30/14 10:13 PM
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Joined: Jan 2003
Posts: 2,863
middle Tennessee
mopower440
OP
master
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OP
master
Joined: Jan 2003
Posts: 2,863
middle Tennessee
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Quote:
I use nut inserts. Various sizes available. Work great for holding a mirror on the body of a car. McMaster-Carr
Google nut inserts as there are YouTube vidoes on how to install them.
Can you tell me what size nut inserts i need to get for this?
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Re: How to fix the threads?
[Re: mopower440]
#1697335
12/13/14 08:46 PM
12/13/14 08:46 PM
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Joined: Jan 2003
Posts: 74,976
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
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Quote:
well the rivet nuts were a COMPLETE FAILURE!! Now i got a mess from hell. Dont see how they are of any use. I installed the damn things and went to tighten the bolts up when mounting the ECU and the stupid rivet nuts turned! They refuse to grip the sheet metal enough to tighten much at all. I had to grab them with a pair of dykes and rip them out of the firewall. Now i am screwed.
That sucks , there are better choices than the one you ended up using , but I'm sure that was all you could find in a local hardware store , but you should have drilled it out and not ripped it out , but I understand the frustration.
What does the firewall look like now ?
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Re: How to fix the threads?
[Re: JohnRR]
#1697336
12/13/14 09:13 PM
12/13/14 09:13 PM
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Joined: Jan 2003
Posts: 2,863
middle Tennessee
mopower440
OP
master
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OP
master
Joined: Jan 2003
Posts: 2,863
middle Tennessee
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Quote:
Quote:
well the rivet nuts were a COMPLETE FAILURE!! Now i got a mess from hell. Dont see how they are of any use. I installed the damn things and went to tighten the bolts up when mounting the ECU and the stupid rivet nuts turned! They refuse to grip the sheet metal enough to tighten much at all. I had to grab them with a pair of dykes and rip them out of the firewall. Now i am screwed.
That sucks , there are better choices than the one you ended up using , but I'm sure that was all you could find in a local hardware store , but you should have drilled it out and not ripped it out , but I understand the frustration.
What does the firewall look like now ?
well, i managed to play around with the holes in the firewall and got them beat down to where they would fit another rivet nut but whats the point if they dont work..I dont see how or why anyone uses these since you cant go past finger tight...? I didnt buy the rivet nuts or the tool. A guy at work had it. When i installed the first one it spun real easy, so i re-set it with the tool with a lot more pressure and snapped the handle in half on his tool and had to buy him a new one and it was not cheap! It was a marson thread setter brand. Like i said, if i put that much pressure to break the damn tool and the rivet nut cant grab any better than that, then why do people use them..?
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Re: How to fix the threads?
[Re: Vert]
#1697338
12/13/14 10:34 PM
12/13/14 10:34 PM
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Joined: Jan 2003
Posts: 2,863
middle Tennessee
mopower440
OP
master
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OP
master
Joined: Jan 2003
Posts: 2,863
middle Tennessee
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Quote:
Bummer about your experience. I've used rivnuts in mopar EOM sheetmetal with zero probs.
Really? What do you think went wrong? I see people using them on the internet all the time, i dont understand why these didnt work worth a crap..? Is it because they are hex-shaped? Most i see are round..
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Re: How to fix the threads?
[Re: mopower440]
#1697341
12/14/14 12:07 AM
12/14/14 12:07 AM
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Joined: Jan 2003
Posts: 74,976
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
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Quote:
Quote:
Bummer about your experience. I've used rivnuts in mopar EOM sheetmetal with zero probs.
Really? What do you think went wrong? I see people using them on the internet all the time, i dont understand why these didnt work worth a crap..? Is it because they are hex-shaped? Most i see are round..
You need a rivnut with a serrated shoulder so it grips the hole, plus the hole you drill for the rivnut needs to be the correct drill size, the rivnut just barely fits in it. Try this with another rivnut clean the hole, and make sure there is no oil in it, and put RED LOCTITE on the rivnut before putting it in and crimping it, let it cure for 4 or 5 hours and give it a try ... but if the hole you drilled is too big it's not going to work.
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Re: How to fix the threads?
[Re: JohnRR]
#1697343
12/14/14 03:24 AM
12/14/14 03:24 AM
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Joined: Jan 2005
Posts: 3,699
Newport, Mi
Evil Spirit
master
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master
Joined: Jan 2005
Posts: 3,699
Newport, Mi
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Quote:
You need a rivnut with a serrated shoulder so it grips the hole, plus the hole you drill for the rivnut needs to be the correct drill size, the rivnut just barely fits in it. Try this with another rivnut clean the hole, and make sure there is no oil in it, and put RED LOCTITE on the rivnut before putting it in and crimping it, let it cure for 4 or 5 hours and give it a try ... but if the hole you drilled is too big it's not going to work.
This, plus there are different inserts for different thickness metals, and different for aluminum than steel.
Free advice and worth every penny...
Factory trained Slinky rewinder.........
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Re: How to fix the threads?
[Re: mopower440]
#1697348
12/17/14 02:52 AM
12/17/14 02:52 AM
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Joined: Nov 2006
Posts: 1,456
oklahoma
forphorty
pro stock
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pro stock
Joined: Nov 2006
Posts: 1,456
oklahoma
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Quote:
Fixed! Thank God! I got the round rivet nuts with the splines around them and they worked awesome! Something was not right about those hex shaped rivet nuts, they didnt even feel like the round ones when pulling them.
The hex shaped rivet nuts are only for hex shaped holes. Mini vans and SUVs often use them for the roof racks and some pickups use them for the tailgate moulding.
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