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Author: Subject: Rivnuts!
kendo

posted on 5/7/10 at 10:38 AM Reply With Quote
Rivnuts!

I am looking to purchase a rivnut tool and there is a wide range of prices and I guess therefore quality.

Some are evidently of industrial quality but I was wondering whether the cheaper pop-rivet style guns are limited to the installation of ali rivnuts?

And if so, was wondering what sort of limits they might have in terms of application. i.e. through grp / ali for lightly loaded items etc. and how about into chassis tubes for slightly more heavily loaded applications?

All thoughts appreciated.

Cheers Chaps

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BenB

posted on 5/7/10 at 10:48 AM Reply With Quote
Certainly with the cheapo one I bought the thread on the tool is very cheap metal (I ripped it a bit with an ali rivnut!!!)... I doubt they'd do anything stronger than ali IMHO. May be it was just mine (uber cheap).
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HomersDouble

posted on 5/7/10 at 10:59 AM Reply With Quote
Try www.memfast.co.uk always heard good things about his stuff
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Bluemoon

posted on 5/7/10 at 11:10 AM Reply With Quote
Been happy with my 12 quid silverline tool for M4 and M6 rivenuts (used steel and Ali in M6).. Bigger in steel might be a problem. Seems to set them well.

Dan

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MK9R

posted on 5/7/10 at 01:15 PM Reply With Quote
i can confirm that the cheapy pop rivet type work fine on steel up to 6mm, and more than man enough for the Ali ones.





Cheers Austen

RGB car number 9
www.austengreenway.co.uk
www.automatedtechnologygroup.co.uk
www.trackace.co.uk

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Irony

posted on 5/7/10 at 01:22 PM Reply With Quote
memfast - job doneRink Dink Linky






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iank

posted on 5/7/10 at 01:25 PM Reply With Quote
Take a look on David Jenkins' web site, has the plans for a very nice rivnut insertion tool that will pull steel rivnuts.

Do a search on the web and there are plenty of homebrew tools to do the job.

[Edited on 5/7/10 by iank]





--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous

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Canada EH!

posted on 5/7/10 at 01:31 PM Reply With Quote
Just be careful when working in areas like the inside of the tunnel, got the rivnut in and clamped but insufficient room to remove the tool, had to cut the threaded portion of the tool of to get it out.
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kendo

posted on 5/7/10 at 02:23 PM Reply With Quote
quote:
Originally posted by Canada EH!
Just be careful when working in areas like the inside of the tunnel, got the rivnut in and clamped but insufficient room to remove the tool, had to cut the threaded portion of the tool of to get it out.


Good point well made.

MEMFast are local to me so they will be a good source.

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DanP

posted on 5/7/10 at 03:07 PM Reply With Quote
RS do a fairly decent one for 17 quid plus vat, I used mine for a couple of jobs on my car, it will do m4 to m8 rivnuts.

"Thread insert riveting tool"
Rs code: 487-151

BTW I would suggest you stay away from ali rivnuts, the thread seems to rip out far too easily.

Cheers,
Dan

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40inches

posted on 14/7/10 at 08:36 PM Reply With Quote
quote:
Originally posted by DanP
BTW I would suggest you stay away from ali rivnuts, the thread seems to rip out far too easily.
Cheers,
Dan

I second that, I have the £12 siverline tool that pulls countersunk steel rivnuts easily, it also has an adjustable stop to prevent ripping the threads out of ally ones, although I use steel rivnuts 90% of the time

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