[Healeys] Thumbscrew threads

Oudesluys coudesluijs at chello.nl
Thu Apr 1 00:50:58 MST 2010


If it were that simple. SMITHS used at least three or four different 
thread sizes on their gauges. I have no idea what, exept they also used 
one, wait for it, metric one.
I have many spare nuts, but I always have to try a few to find a fitting 
one.
Kees Oudesluijs
NL

Alan Seigrist schreef:
> Bob -
>
> All that stuff on smith's guages is BA threading.  Thinking about the studs
> on the back of the gauges, my guess is the thumbscrews are probably 3 or 4
> BA size.  the thumbscrews can be bought from a multitude of suppliers for
> small money:
>
> http://www.sussexclassiccar.co.uk/shop_factory_hazel/index1.html
>
> Bob Spidell wrote:
>
>   
>> Anyone know the size and thread of the studs on the back of Smiths speedos,
>> tachs, etc. (the ones that hold the clamps to the backside of the panel)?
>>  We have--ahem--'aftermarket' screws intalled by a PO on our BN2's speedo,
>> and I'd like to get back closer to original; I have new thumbscrews but they
>> don't fit any screws in my inventory (looks like size 8 but the thread is
>> not 32tpi--24tpi maybe?).
>>
>> TIA,


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