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Rivnuts in fibre glass?
iiyama - 25/2/08 at 02:27 PM

Want to bolt the rear arches on, can I use rivnuts in fibreglass? Are there special types or just use the normal version? Do I need to re-inforce the area with say some aluminium?


rayward - 25/2/08 at 02:28 PM

i put some repair washers behind rivnuts into fibreglass, but a couple still have small cracks around them

hth

Ray


worX - 25/2/08 at 02:30 PM

I'd perhaps rivnut my own FG (with a washer in support) but not someone else's!
This is what I did on Tim's MNR (the rivnut is only in the ali and the ali is riveted to the body - all behinf the lip of the arches, naturally!):


iiyama - 25/2/08 at 02:34 PM

they countersunk rivets? Or does the wing piping hold the arch clear of the rivet head?


worX - 25/2/08 at 02:52 PM

The rivets are not countersunk, I just chose to buy a couple hundred of a few different sorts last time I bought some FROM HERE and the type I used were incredibly slim-headed! (and so, yes, the piping more than takes up the imposition!)
The rivet's serve virtually no purpose when the arch is attached...

Steve


twybrow - 25/2/08 at 04:30 PM

What you need are Big Heads

I used these in loads of places (structural and non-structural) when I worked at Sunseeker and they are amazing little fasteners. Combine with Sikaflex and they wont ever budge!


Johneturbo - 25/2/08 at 04:59 PM

I used jacknuts, got the idea from someone else on here. they are perfect for the job
HERE

[Edited on 25/2/08 by Johneturbo]


RazMan - 25/2/08 at 05:01 PM

Bigheads are designed for the job. Give them a call and blag some samples - they are very helpful. in fact I got enough 'samples' to do most of the jobs on my car


Johneturbo - 25/2/08 at 05:20 PM

the good thing with the jacknuts is you dont need access to both sides, ie if you've already fitting the inner panels.


iiyama - 26/2/08 at 08:18 PM

Thanks guys.

Ill use Worx's idea as I have a load of ally rivnuts!


MikeRJ - 27/2/08 at 10:33 AM

quote:
Originally posted by Johneturbo
I used jacknuts, got the idea from someone else on here. they are perfect for the job
HERE

[Edited on 25/2/08 by Johneturbo]


Look like cavity wall fixings!


Schrodinger - 27/2/08 at 09:50 PM

quote:
Originally posted by MikeRJ
quote:
Originally posted by Johneturbo
I used jacknuts, got the idea from someone else on here. they are perfect for the job
HERE

[Edited on 25/2/08 by Johneturbo]


Look like cavity wall fixings!


They are similar but shorter the ones I used were called hollow door fixings.