<br><font size=2 face="sans-serif">Hi Kent,</font>
<br>
<br><font size=2 face="sans-serif">Can you find this info on thread size?</font>
<br>
<br><font size=2 face="sans-serif">Thanks.</font>
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<br><font size=2 face="sans-serif">Paul T Williams RPT</font>
<br>
<br><font size=2 face="sans-serif">ps The sheep drawing is coming
soon, you artist you! ;>)</font>
<br>
<br><font size=2 face="sans-serif">PW</font>
<br><font size=1 color=#800080 face="sans-serif">----- Forwarded by Paul
T Williams/Music/UNL/UNEBR on 07/24/2008 05:23 PM -----</font>
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<td width=40%><font size=1 face="sans-serif"><b>"David Ilvedson"
<ilvey@sbcglobal.net></b> </font>
<br><font size=1 face="sans-serif">Sent by: caut-bounces@ptg.org</font>
<p><font size=1 face="sans-serif">07/24/2008 04:13 PM</font>
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<div align=center><font size=1 face="sans-serif">Please respond to<br>
ilvey@sbcglobal.net; Please respond to<br>
College and University Technicians <caut@ptg.org></font></div></table>
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<div align=right><font size=1 face="sans-serif">To</font></div>
<td><font size=1 face="sans-serif">caut@ptg.org</font>
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<div align=right><font size=1 face="sans-serif">cc</font></div>
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<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">Re: [CAUT] steinway pedal plate screws</font></table>
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<br><font size=3>David,</font>
<br><font size=3> </font>
<br><font size=3>Thanks for time spent to no avail...;-[ I'm wondering
whether the new pedal assemblies available through Steinway have a different
plate screw? You can't get the old screw through them...</font>
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<br><font size=3>David Ilvedson, RPTPacifica, CA 94044</font>
<br><font size=3>Original messageFrom: "David Skolnik" To:
"College and University Technicians" Received: 7/24/2008
12:01:00 PMSubject: Re: [CAUT] steinway pedal plate screws </font>
<p><font size=3>Tom & friends,I have devoted an unconscionable number
of hours to this pursuit, to no avail. The screw dimensions are .2125"
(5.4mm) iameter and 28</font><font size=5>+</font><font size=3> tpi. There
must be someone who knows the history of this screw, why these dimensions
were employed and when it might have changed. At this point it seems
a matter useless curiosity, nothing more. ThanksDavid SkolnikHastings
on Hudson, NYAt 12:03 PM 7/22/2008, you wrote:</font>
<p><font size=2>Hi, David I. and David S., and Colleagues - I took a look
at the pedal plate on an 1889 Steinway, the oldest on the premises at the
moment. (I figured if there were an oddball thread to be found it
would be more likely the older the piano.) I found that screws anchoring
the pivot rod were garden-variety No. 8 32-thread x 1/2 inch flat head
machine screws. We have a box of these screws we keep on hand for
the occasional replacement. To David S.: 30-thread would be very
odd indeed. There is no current or recent (20th century) American,
Canadian or British standard thread at 30 pitch. And that's why many
thread guages skip that pitch. Metric threads don't quite approximate
that either. I accidentally deleted your post on the topic, but I
recall you mentioned measuring your screw diameter at something like 0.213
inch. That would be about right for a No. 12 screw, which should
be 28 pitch in the fine-thread series. There would be no point in S&S
using special threads for this part. Common hardware is available
to do the job and it would be much more expensive to have custom-made screws
and custom-made taps, etc. ~ Tom McNeil ~Vermont Piano RestorationsVermontPiano.com</font>