[TheForge] Fw: Machine screw size?

[Peter Fels & Phoebe Palmer]

Foreign auto dealers and parts places as well as many bearing houses 
have metric threads.
Before the SAE etc, many manufacturers simply developed their own 
threads and those from a Ford wouldn't fit a buick, etc.

David E. Smucker wrote:
> Any other marking or name on anything?  Place of manufacture?  Any guess on 
> age?
> 
> If it was British made (as many older planes were) and it is pre-metric then 
> it is most likely a Whitworth thread.  They are 55 degrees vs. the USA and 
> metric threads that are 60 degrees.  You will not find these anywhere easy 
> in the states except maybe somewhere on the web.  Older British cars also 
> used the Whitworth thread form, as did older British guns.
> 
> Hell, if your not trying to "restore" it then just tap it out -- of course 
> you will destroy its value to collectors -- old planes go for a bunch among 
> tool collectors.
> 
> Then again it may be metric.  Bike stores will have smaller metric bolts.
> 
> Dave
> 
> --------------------------------------------------
> From: "CGRAF" <adveniam at att.net>
> Sent: Tuesday, June 23, 2009 2:47 PM
> To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
> Subject: Re: [TheForge] Machine screw size?
> 
>> You might want to join and ask this question on
>> the oldtools list.
>> http://ruckus.law.cornell.edu/mailman/listinfo/oldtools
>>
>>
>> Mike Graf
>>
>> Jeff & Leslie wrote:
>>> Today in a trash pile I found a little 1" wide blade, plane.  I found 
>>> three
>>> pieces, the body, the blade, and the "wedge" that slips over the blade 
>>> and
>>> tensions it when a screw is tightened thru this piece against the blade.
>>> I'm trying to find the screw and nothing I have fits.  A 10 - 32 starts
>>> easily and then after 1/8" it won't go anymore.  I don't have a metric 
>>> that
>>> small so maybe that's it.  Anyone familiar with this situation and have a
>>> guess as to what size it is.  I could run a 10 - 32 tap thru it, or go to
>>> lowes and see if anything fits.  Thanks,
>>>
>>> Jeff in WTF is it this hot Tallahassee
>>>
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