[CAUT] steinway pedal plate screws

[David Ilvedson]

The tapped screw doesn't have to have a hex head...right?   I'd prefer a slotted screwdriver...I think...?



David Ilvedson, RPT

Pacifica, CA 94044







Original message

From: "David Skolnik" 

To: "College and University Technicians" 

Received: 7/26/2008 10:33:24 PM

Subject: Re: [CAUT] steinway pedal plate screws





Ken -

I am grateful for your response, so it likely seems odd, or tiresome that I would challenge you on this, and the fact that you have found a quick and effective means of addressing the problem is really the relevant point.   It becomes little more than a quirky footnote that the screws (all three) from my model O #160774 are not 28 tpi, but something slightly more.  I did speak to someone in the trade (screws) who gave me reason to believe that there still are some 12x28's out there, but it would be of little use to me, had I the need for a replacement.  Thanks again for sharing your suggestion.  I'd just hate to be the unfortunate technician who, someday, goes to tighten those pedals, only to find he lacks the proper hex tool.  One more item to start packing in.



Regards,



David Skolnik

Hastings on Hudson, NY





At 11:28 AM 7/25/2008, you wrote:



Hey, David,



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



-- Ken Zahringer, RPTPiano TechnicianMU School of Music297 Fine Arts882-1202cell 489-7529

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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