51 Re: Studs, who wants a stud? Mon Feb 04, 2013 6:31 pm
sidecar paul
Life time member
Klompy the grey brick wrote:2 for me please colour is not important at all....but yet again a non threaded centre portion is atractive.
I was wondering why BMW used an 'all thread' stud, because, as Klompy says, a plain centre section does seem to be atractive.
Maybe this is the reason.
An 'all thread' stud has a constant root diameter, nom 10.2 mm. A stud with a plain section would have different diameters, ie, 10.2 root at the threads and 12 at the plain section. Now, any bending load on the 'all thread' stud would be spread along the whole stud, but on the variable diameter stud the load would be concentrated at the change of section. So perhaps the 'all thread' is less likely to fail?
Does that sound logical?
Paul.