411 wheel nut size

Kevin H · #1 (**permalink**) 23-01-09, 09:58 AM

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

Peter.Kent · #2 (**permalink**) 23-01-09, 11:30 AM

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

Kevin H · #3 (**permalink**) 23-01-09, 03:00 PM

Quote:

Originally Posted by Peter.Kent

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.

sjp63 · #4 (**permalink**) 24-01-09, 11:43 AM

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??

peter dowdle · #5 (**permalink**) 24-01-09, 02:10 PM

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

sjp63 · #6 (**permalink**) 24-01-09, 03:09 PM

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.

406Special · #7 (**permalink**) 24-01-09, 03:50 PM

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