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<DIV>David -</DIV>
<DIV>Somewhere I have some info on this and will try to find it over the
weekend, as well as the name of the person who gave me the info.</DIV>
<DIV>Stay tuned......</DIV>
<DIV>Debbie Cyr</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 7/24/2008 3:02:39 P.M. Eastern Daylight Time,
davidskolnik@optonline.net writes:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT
style="BACKGROUND-COLOR: transparent" face=Arial color=#000000 size=2>Tom
& friends,<BR>I have devoted an unconscionable number of hours to this
pursuit, to no avail. The screw dimensions are .2125" (5.4mm)
<BR>iameter and 28<FONT size=5>+</FONT> 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. Thanks<BR><BR>David Skolnik<BR>Hastings on
Hudson, NY<BR><BR><BR><BR>At 12:03 PM 7/22/2008, you wrote:<BR>
<BLOCKQUOTE class=cite cite="" type="cite"><FONT size=2>Hi, David I. and
David S., and Colleagues -<BR> <BR>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.<BR> <BR>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.<BR> <BR>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.<BR> <BR>~ Tom McNeil
~<BR>Vermont Piano
Restorations<BR>VermontPiano.com</FONT></BLOCKQUOTE><BR></FONT></BLOCKQUOTE></DIV></FONT><BR><BR><BR><DIV><FONT style="color: black; font: normal 10pt ARIAL, SAN-SERIF;"><HR style="MARGIN-TOP: 10px">Get fantasy football with free live scoring. <A title="http://www.fanhouse.com/fantasyaffair?ncid=aolspr00050000000020" href="http://www.fanhouse.com/fantasyaffair?ncid=aolspr00050000000020" target="_blank">Sign up for FanHouse Fantasy Football today</A>.</FONT></DIV></BODY></HTML>