10 replies to this topic

[HarrysMini]

I need to come up with a way of installing MG ZR seats to a Mini, and something I've thought of would necessitate the use of Rivnuts. 

 

For obvious reasons, the seats need to be very well secured, so will rivnuts be secure enough? I've read about other's using them, but I'm not sure..

 

Any thoughts welcomed.

[Cooperman]

Rivnuts are not designed for high load applications. They are for light loading only.

For seat fixing it is better to MIG-weld the nuts to the structure.

[petehuws]

The only time I ever used rivnuts was to repair stripped water bottle cage threads on my pushbike.  Cooperman is on the ball; Mig weld nuts...

[HarrysMini]

MIG welding the nuts definitely sounds like the safest option; that's probably what I'll end up doing.

[Cooperman]

RivNuts are fine for things like wheel arch extensions, spot lamp steady bars, trim items, additional instrument panels, extra fuse boxes, switch brackets and other low load non-safety critical items.

[HarrysMini]

RivNuts are fine for things like wheel arch extensions, spot lamp steady bars, trim items, additional instrument panels, extra fuse boxes, switch brackets and other low load non-safety critical items.

That's what I bought them for, I want to replace all the rust-prone self tapping screws with them.

[Cooperman]

 

RivNuts are fine for things like wheel arch extensions, spot lamp steady bars, trim items, additional instrument panels, extra fuse boxes, switch brackets and other low load non-safety critical items.

That's what I bought them for, I want to replace all the rust-prone self tapping screws with them.

 

 

I often use RivNuts to replace self tapping screws. I also tend to use stainless steel cap head screws rather than slot or Phillips head screws. The additional instrument panels in my rally 'S' are covered with black leathercloth and held in with M4 RivNuts and Stainless cap head screws.

[Artful Dodger]

i look at it like this

 

if you could possibly pull the item off with your bare hands when attached normally, rivnuts will be a good replacement for the fixings.  if you DO NOT want to be able to pull it off with your hands, DO NOT use rivnuts.

[Cooperman]

Then there are the 'worse than useless' engine mountings with RivNuts!

[Artful Dodger]

thats so daft!    crap aluminium thread holding your engine in, no thanks!!

[sledgehammer]

We use H/D steel bolhoff's at work (similar in principle to rivenut's)

 

they can hold a lot of weight , used to lift machinery (around 1/4 ton on 2 m8 threads) on 60x8 mm bar hangers

 

they even go thru hot dip galv , on test the m8 10.9 bolt fails before the bolhoff ever does

 

we make thousands per year without failure

 

but the steel thickness needs to be 3mm + for the smaller ones - so no use on a mini the mini would tear before the bolhoff

 

I used to use similar fixings when I used to make lorry bodies , Monel rivets & other rivet types

 

these are all steel rivet/nuts and need to be set with a special gun

 

not all rivets are equal

 

but ally rivenuts are going to be as weak as an ally nut/bolt

Edited by sledgehammer, 05 July 2014 - 09:20 PM.