<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 12 (filtered medium)"> <title>Re: Machine Threads in Pinblock, was WD-40</title> <style>  </style>  </head> <body bgcolor=white lang=EN-US link=blue vlink=purple> <div class=Section1> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'>Hi Terry:<o:p></o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'><o:p> </o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'>This is ever so slightly off topic at hand, but I’ll run with it anyway.  I’m going to be using the 3/8” x 16 thread x 4” long socket set screws for plate screws as you, Ron, Del, and others are doing.  What size drill bit are you using to drill the hole in the rim? (or drill the plugs glued  in the holes, as it were).  Are you tapping afterwards?  What size tap if so?<o:p></o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'><o:p> </o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'>I was able to get these screws, acorn nuts, etc at my local <i>Fastenal. </i> One inch round brass stock as well for mass loading.  I mention this for others, as there are supposedly 4000 of these stores in the<o:p></o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'> U. S., so you may just be able to run down the street instead of mail ordering.   Lots of other stuff there that us weird piano rebuilders might use or adapt, and they have a huge catalog.  <o:p></o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'><o:p> </o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'>Also, these 3/8” screws miked out at .369 instead of the .375 that 3/8” works out to.  Does that differ from your stock?<o:p></o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'><o:p> </o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'>Thanks for your help!<o:p></o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'><o:p> </o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'>Will Truitt<o:p></o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'><o:p> </o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'>By the way, I think this set up is absolutely brilliant in its simplicity and application.  Kudos to Del and Ron for coming up with it.<o:p></o:p></span></p> <p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"; color:#1F497D'><o:p> </o:p></span></p> <div> <div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'> <p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] <b>On Behalf Of </b>Farrell<br> <b>Sent:</b> Wednesday, June 18, 2008 4:13 AM<br> <b>To:</b> Pianotech List<br> <b>Subject:</b> Re: Machine Threads in Pinblock, was WD-40<o:p></o:p></span></p> </div> </div> <p class=MsoNormal><o:p> </o:p></p> <div> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Hi Ron!  I also use coarse thread as you do. However, I have tried tapping the maple and found that it made the hole too big - I used the proper tap for the given machine screw. I figured that the maple must have enough give in it (compared to metal), that caused the poor fit. I've gone to simply drilling a hole a little smaller than the thread and simply running a buttered (wax) machine screw into the hole (just like one does with a wood screw). I seem to get the nice tight fit that way. Do you find that you machine screw have a snug fit after tapping the hole?</span><o:p></o:p></p> </div> <div> <p class=MsoNormal> <o:p></o:p></p> </div> <div> <p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Terry Farrell</span><o:p></o:p></p> </div> <blockquote style='border:none;border-left:solid black 1.5pt;padding:0in 0in 0in 4.0pt; margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'> <div> <p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>----- Original Message ----- <o:p></o:p></span></p> </div> <div> <p class=MsoNormal style='background:#E4E4E4'><b><span style='font-size:10.0pt; font-family:"Arial","sans-serif"'>From:</span></b><span style='font-size:10.0pt; font-family:"Arial","sans-serif"'> <a href="mailto:sec@overspianos.com.au" title="sec@overspianos.com.au">Ron Overs</a> <o:p></o:p></span></p> </div> <div> <p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>To:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <a href="mailto:pianotech@ptg.org" title="pianotech@ptg.org">Pianotech List</a> <o:p></o:p></span></p> </div> <div> <p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Sent:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> Tuesday, June 17, 2008 4:48 PM<o:p></o:p></span></p> </div> <div> <p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Subject:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> Re: Machine Threads in Pinblock, was WD-40<o:p></o:p></span></p> </div> <div> <p class=MsoNormal><o:p> </o:p></p> </div> <div> <p class=MsoNormal>Fenton,<o:p></o:p></p> </div> <div> <p class=MsoNormal><o:p> </o:p></p> </div> <blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'> <p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>. . . Would you recommend a fine or coarse thread?</span><o:p></o:p></p> </blockquote> <div> <p class=MsoNormal><o:p> </o:p></p> </div> <div> <p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Always course threads in wood. We use the regular tapping tools after drilling the minor diameter.</span><o:p></o:p></p> </div> <div> <p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Ron O.</span><o:p></o:p></p> </div> <pre>-- <o:p></o:p></pre> <div> <p class=MsoNormal><b><span style='font-size:13.5pt;color:blue'>OVERS PIANOS - SYDNEY</span></b><o:p></o:p></p> </div> <div> <p class=MsoNormal><i><span style='color:black'>   </span></i><i><span style='color:blue'>Grand Piano Manufacturers</span></i><span style='color:black'><br> _______________________</span><o:p></o:p></p> </div> <div> <p class=MsoNormal><span style='font-size:7.5pt;color:black'><br> </span><span style='color:black'>Web <a href="http://overspianos.com.au">http://overspianos.com.au</a></span><o:p></o:p></p> </div> <div> <p class=MsoNormal><span style='color:black'><a href="mailto:ron@overspianos.com.au">mailto:ron@overspianos.com.au</a><br> _______________________</span><o:p></o:p></p> </div> </blockquote> </div> </body> </html>