411 wheel nut size
 

anyone know what the wheel nut thread size is on a 411??

Thanks

9/16 BSF

Can I ask why you want to know?

Kevin

411 wheel nut size
 

The 412 (no reason to think that it is different from the 411) wheel nut
thread is 9/16 BSF (British Standard Fine) 16 threads per inch.
This is from memory and postings some years ago. Bit frosty outside but I
will recheck tomorrow.

John P

411 wheel nut size
 

if you are looking for a set of alloy wheel nuts as per factory i made my
own

peter dowdle

It's probably worth mention that the nuts for the steel wheels are different to the nuts for the alloy Avon wheels. The nuts for the Avon wheels go through the wheel, so they are longer and come with a collar.

I bought some secondhand nuts and collars along with a secondhand Avon wheels from Bristol Cars Services. This was a few years ago and the nuts were £5 each (with collar) but they were in a sorry state. They are chromed originally and as you can imagine this doesn't wear very well, so once the chrome comes off they rust.

I was offered stainless steel nuts at the time that they use on the later V8 cars, but I felt £400 for a set of wheel nuts was a bit much.

At the time I looked into getting polished SS nuts made, but the demand wasn't sufficient to justify the tooling and set up costs.

411 wheel nut size
 

I have returned home after two weeks in the sun to kill off some of the
winter weather, however, I have not been pleased to read some of the items on the
forum.
First wheels do not come loose unless something fractures, they come loose
because they have not been fitted correctly! In most cases it is because the
wheel has not been located in its right position, that is not square and flat
on its central location, the nuts are tightened but are not fully home, thus
when the wheel rotates the wheel seats itself and low and behold the nuts are
loose.
The correct way to fit a wheel especially when the wheels have been off for
some time is to wire brush the wheel, its location and the studs to make
certain that they are perfectly clean. (the studs and nuts should also be washed
afterwards). The studs and wheel location should then have a thin smear of
grease (if this is not done to the wheel surfaces you can end up with a
creaking wheel), but above all make certain the wheel is correctly located before
the nuts are fully tightened home. If this is done they will NOT come loose.
My regards,
Bellerophon

411 wheel nut size
 

kevin as i mentioned i made my own wheel nuts and spacers

purchased propritory chrone mag wheel nuts from ant tyre service

drilled the threads out and re tapped to correct bsf thread

designed and made up on lathe correct tappered spacers had them platted

they work perfectly and look correct

regards peter dowdle

Peter, that's an interesting way to do it, using existing nuts - I hadn't thought of that. One downside for myself and no doubt some others, would be the fact that we would also have to buy a lathe! Which probably means it would be cheaper to buy the SS nuts from Bristol.

Personally I took a slightly different route - I took the nuts and collars I had bought secondhand from Bristol, cleaned them up, had them nickel plated and polished. The polished nickel plate is a slightly different colour to chrome but it's much tougher, so it's less likely to crack and chip like chrome always seems to do eventually. I'm happy with the results - see (rather poor) picture attached.

If the price was reasonable however, I would go for polished stainless steel.

Regards,
Kevin

411 wheel nut size
 

kevin

kevin the wheel nuts pictured are different than the ones I copied from
john mays 411 mk 5 , in that the distance they pertrude into the wheel ,
that is from the base of the washer to the bottom of the nut on his car
is .551 inch . Yours seems much shorter. I have a diagram that geoff drew
from johns car. The nuts I made when tightened almost touch the axle
stub. What all this means I am not sure !

peter dowdle

Peter,

I'm not able to measure mine right now because the car isn't at home, but my nuts were originals (used) bought from Bristol Cars Services. The thread length is quite substantial.

That photo was taken several years ago and it is possible that the nut wasn't all the way home in the collar/washer when the photo was taken.

Kevin

411 wheel nut size
 

About two years ago BEEF had approved the design, the ss blank was to hand
and production seemed so close .... P

I don't know anything about this.

In Aug/Sept 2000 (pre BEEF) I came close to getting ss nuts and washers made here in Australia but the min quantity was 1000. From memory it was going to cost me around AUD$10k, but I couldn't get sufficient commitment from owners via the BOC Forum. Bristol themselves were interested, they even supplied me with the necessary steel specs, but they wouldn't commit to buy any without seeing a sample. Fair enough I suppose but I couldn't get a 'sample' made without the other 999!

I did go ahead and get barrel nuts made which are needed for the exhaust manifolds on the 400 cid engines and I still have hundreds of them in my garage! After that little lesson I decided not to go ahead with the wheel nuts.

I wanted to know because I have a set of wolfrace Britannia/Beaufighter alloys that I want to fit to my 411 and need some nuts. There are various nut suppliers on the web with sleeved nut designs and tapers and some sell "wolfrace sleeved nuts"

I just need the thread size and other dimensions to see if they have the correct ones.

BTW I measured the wheel holes and I get 17.2mm dia hole and approx 6mm sleeved depth before the taper starts.

Other than that a part number or a second hand set would do!

Also tyres......

411 = 205/70/15

Britannia etc = 215/70/15

Using a tyre calculator the 215's are noticeably larger diameter

215/65/15 gets me back to the same diameter as the original 205/70/15

Any comments on this??

411 wheel nut size
 

the standard alloy wheel nuts for 411 are 17mm in diam

they are appoximately14 mm from bottom of tapper deep

the tapper is 30 degrees

the thread is 9/16 bsf

what messurement exactly is the 6 mm

Its not a 411 alloy its a Britannia wolfrace alloy on a 411. The 6 mm is the depth or thickness of parallel section the wheel stud hole. Put another way if the alloy wheel nut sleeve was longer than approx 6mm it would bottom out against the hub before the taper gripped the wheel.

Not sure what you mean about the but being 17mm - if you mean the sleeve diameter that would make sense.

411 wheel nut size
 

Try this out: http://www.tyresave.co.uk/tyresize.html

The difference either way is not equal diameter although 65 aspect
ratio gives just over 1% less over the 70 which gives 2+% greater
diameter over the 205/70/15 combo.

Clyde

Thanks - but I know that. Just wondering if anyone is running a 411 on 215/65/15 and if they are happy with the set up

411 wheel nut size
 

as mentioned earlier kevins wheel nuts are shorter the ones i copied from
411 mk 5 are longer

it would therefore appear that his would be ideal provided the angle of the
tapper is correct

clealy the 17 mm is common to your wheels and 411 wheels

peter dowdle

Peter, I don't think we can say that for sure until I can actually measure mine. I wouldn't make that assumption based on a photo. There's no guarantee that the nut in my photo is properly home in the washer, in fact it is unlikely that it is.

Or maybe it's the washers that are different?

In the mean time, maybe someone else with Avon wheels can whip a nut off and measure nut and washer - maybe even make some drawings :)

Regards,
Kevin Howard

PS. Oops, just realised I posted this from my development admin account - sorry for any confusion!

or better still someone with 18 spoke 15 inch Wolfrace Britannia/Beaufighter wheels measures their nuts!