[CAUT] steinway pedal plate screws

[David Skolnik]

Ken -
My apologies.  I was picturing a socket head cap screw, an item that, 
like my digital caliper, I try to find a use for when I can.  Yours 
would take a standard 7/16th socket, which I already carry.  Given 
what tends to happen to the slot in those screws over time, the hex 
is probably a good idea.  Thanks again.

David Skolnik
Hastings on Hudson, NY


At 11:28 AM 7/25/2008, you wrote:
>Hey, David,
>
>I've been gone this week, so I'm just now replying.  I went through 
>this a while back.  Those are 12x28 machine screws.  I found a 12x28 
>tap at the hardware store (that's how I confirmed the size), but 
>nobody makes 12x28 screws any more.  I bought a 1/4x28 tap and a #3 
>drill and replaced the originals with a hex head cap screw.  Quick 
>job, works great.
>
>Regards,
>Ken Z.
>
>
>On 7/24/08 2:01 PM, "David Skolnik" <davidskolnik at optonline.net> wrote:
>
>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+ 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
>
>David Skolnik
>Hastings on Hudson, NY
>
>--
>Ken Zahringer, RPT
>Piano Technician
>MU School of Music
>297 Fine Arts
>882-1202
>cell 489-7529
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