21 replies to this topic

[bunch1980]

Used these before in rc models all be it smaller. The 4mm (M4) size requires an 8mm hole. When screw is done up the expand and hole it on buts is also damped against vibes and can easily be removed see link from CBS below.

http://www.cbsonline...nut4-4231-p.asp

I plan to reaplce my standard black special arches soon but dont want to rivet them back on and all I would need to do is use same holes but enlarge to 8mm and treat hole etc with rust converter prime and paint to, at least I could easily remove to in future.

Good idea or not?

[minimadjonesy]

don't see why this wouldn't work. I was planning to use proper rivnuts for my arches when i rebuild but now i've seen these I may have to chnage my mind!!

[bobs]

Good idea, but why stop at arches, I've seen them under the bumpers before, and anywhere where metal hits mini paint...

[Body stylist]

the only down side is that they space the arch away from the body by the thickness of the rubber flange

[mini93]

iv used them on my car elsewhere, there alright but im not sure about using them on the arches, especialy on the rear, gets close to the inner wheel arche if i remember.

Also remember the flange over the top of the riv nut will cause the arche to sit away from the body work. My m6 rubber riv nuts have about a 3mm flange so would look daft if it were such a distance away

[Asphalt]

I used expanding plastic rivets to fix my rear arches. They seem to cope well, next time the arches need to come off I'm using them on all arches.



They'r dead easy to install as well. Push them through, push in the pin and done.

They come in various forms & sizes, and some have a lens cap on top, which makes it easy to remove & re-use them as well



And they don't leace a gap between bodywork & archand look very dezent, almost invisible

Edited by Asphalt, 21 September 2010 - 12:14 PM.

[bunch1980]

I used expanding plastic rivets to fix my rear arches. They seem to cope well, next time the arches need to come off I'm using them on all arches.



They'r dead easy to install as well. Push them through, push in the pin and done.

They come in various forms & sizes, and some have a lens cap on top, which makes it easy to remove & re-use them as well



And they don't leace a gap between bodywork & archand look very dezent, almost invisible

Yeah someone else recommended alloy rivnuts, just got to buy a decent rivnut gun to etc then.

The M4 rubber ones have a 1mm flange so cant see that causing to much of a spacing issue!

Interesting plastic rivets guess you flick of cap and pull pin to remove with pliers etc?

[bunch1980]

iv used them on my car elsewhere, there alright but im not sure about using them on the arches, especialy on the rear, gets close to the inner wheel arche if i remember.

Also remember the flange over the top of the riv nut will cause the arche to sit away from the body work. My m6 rubber riv nuts have about a 3mm flange so would look daft if it were such a distance away

Could be a problem with clearance in rear then hhhhmmm would rivnuts alloy have same problems?

[mini93]

im not sure on clearance but iv seen its been close before...but not sure with standard arches.

why dont you want to rivet them in anyway? rivet guns are cheap aswell and pack of rivits are too, riv-nut guns i have seen arent too cheap

[AVV IT]

Seems like a lot of hassle just to avoid rivets to me. Personally I don't see the problem with rivets, they're cheap, don't rust, are quick to fit and easy enough to remove should you want to remove your arches. It's just a quick buzz with a cordless drill on each rivet head and they're off!. They're also more secure than screws. Should any "would be thief" take a fancy to your nice new arches, they would need to carry a drill as opposed to just a screwdriver in order to nick them!

I'll stand up in defence of the humble rivet if nobody else will!!

[bunch1980]

I was going to just rivet them on normally have a rivet gun i think or my Dad does, replys on here were its not best for various reasons from rust to needing longer rivets in certain parts of arch im not sure where exactly.
I guess either way is adding to hole being damaged to allow rust in so what ever will clean up holes and rust convert prime and paint to!

[TopCatCustom]

You can get rivnuts with a tiny countersunk flange so they mount flush- after drilling the hole give it a little tap with a 90degree cone like a big centre punch and that will be enough of a recess to sink the heads of the rivnuts flush. Most have a proper flange like your rubber ones, I think I'd use rivnuts or self tappers with copper grease, pop rivets can be too tight sometimes which can cause the plastic you are riveting to crack!

[bunch1980]

You can get rivnuts with a tiny countersunk flange so they mount flush- after drilling the hole give it a little tap with a 90degree cone like a big centre punch and that will be enough of a recess to sink the heads of the rivnuts flush. Most have a proper flange like your rubber ones, I think I'd use rivnuts or self tappers with copper grease, pop rivets can be too tight sometimes which can cause the plastic you are riveting to crack!

Yeah i think cbs do ones like that. My as fitted from factory black special arches are cracked in places to dont know if thats due to be to tight or knocked etc, but they look really faded to so time for some new ones! but how fit them what a dilema lol!

[Hekmat]

The rubber nuts are used for bike fairings. I have loads on my bike, they are good however sometimes when the bolt is rusted to the nut the rubber start to turn when trying to undo the bolt. Also be prepared that when you try to remove the arch 70% of the time you will have to replace the rubber nut, since with pressure they start to loose their grip and shape.

by the way I am replacing the rubber nuts with rivted nuts on the bike.

[bunch1980]

The rubber nuts are used for bike fairings. I have loads on my bike, they are good however sometimes when the bolt is rusted to the nut the rubber start to turn when trying to undo the bolt. Also be prepared that when you try to remove the arch 70% of the time you will have to replace the rubber nut, since with pressure they start to loose their grip and shape.

by the way I am replacing the rubber nuts with rivted nuts on the bike.

Thanks for input, I know how you mean have had this on motorbike panels to, to solve that i guess I would use copper grease or something and it does say on CBS these are neoprene and not rubber so might be better then!
If the rubber ones didnt hold would just have to hope hole i drill is ok for proper riv nuts as one drilled holes normal rivets aint going to work!!