On 23/10/2020 08:32:03, michael adams wrote:
"The Natural Philosopher" wrote in message
...
On 22/10/2020 23:56, Roger Hayter wrote:
On 22 Oct 2020 at 17:42:21 BST, ""michael adams""
wrote:


"Andrew" wrote in message
...

On 22/10/2020 17:25, michael adams wrote:

"NY" wrote in message
...


As a matter of interest, when and why did cars change from using threaded
studs
fastened into the hub with the wheel fastened to the hub by nuts, to the
modern
practice of using bolts (machine screws?) into threaded holes in the hub?


No they're definitely screws, of some kind or other if they have to be
screwed in. Maybe calling them all "bolts" as with cylinder head "bolts"
is some kind of affectation among car mechanics.


My astra wheel nuts /bolts are not screws.

If you've got nuts, then they're bolts obviously.

That's the definition of a bolt; something with a thread on the end onto
which is
screwed a nut.

The OP is talking about screws which you screw into the hub with no nuts
involved.


michael adams

...

I defer to your greater knowledge, of course, but I have never heard studs
called bolts. In fact, the humble stud contains in its person both what you
call a screw and what you call a bolt. So best to call them studs?

Michael adams is a pompous ignorant prick. Ignore.

Bolts are threaded rod with a head and a plain shaft part as well as a threaded part.
End of.

Screws have a head and are all threaded.

So that coach screws are actually coach bolts. I see.

Different area of interest.

I don't understand why you persist.
https://www.leytonfasteners.co.uk/bo...w-information/

Common UK parlance for a bolt and a set screw is that there is thread
the entire length of the set screw, whereas a bolt is only partly threaded.

Anything else is contrary to UK convention, for decades, perhaps rather
than centuries.

You are of course perfectly free to believe otherwise, but is a foolish
approach and most unhelpful in making purchases in the UK of, or
specifying in the UK, machine/set screws / bolts.