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 >No virus found in this incoming message. >Checked by AVG. >Version: 7.5.524 / Virus Database: 270.5.6/1575 - Release Date: >7/26/2008 4:18 PM -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/20080727/97129f11/attachment.html
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