[CAUT] steinway pedal plate screws

[Ken Zahringer]

Hey, David,

I¹ve been gone this week, so I¹m just now replying.  I went through this a
while back.  Those are 12x28 machine screws.  I found a 12x28 tap at the
hardware store (that¹s 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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