<!doctype html public "-//W3C//DTD W3 HTML//EN"> <html><head><style type="text/css"></style><title>Re: Boesy Capo Problem</title></head><body> <div>At 07:31 -0800 14/12/07, you wrote:</div> <div><br></div> <blockquote type="cite" cite>The outer dimension of the bolts is .268".  Can anyone suggest the</blockquote> <blockquote type="cite" cite>best approach for this, tools, thread count, etc..  Machining type work is</blockquote> <blockquote type="cite" cite>not exactly my area.</blockquote> <div><br> <br> </div> <div>See <http://www.boltscience.com/pages/screw1.htm><br> </div> <div><br></div> <div>Last month I had to have a screw made for a Bechstein as pictured below</div> <div><br></div> <div><br></div> <div><img src="cid:p0624081bc389751fe8e3@[10.0.0.3].1.0" width="434" height="91"></div> <div><br></div> <div>The diameter was about 6.75mm (0.266"), so probably the same thing.  This thread is to an old German standard.  The pitch is about 1.125mm and the thread angle is 60 degrees (same as metric).</div> <div><br></div> <div>I spent ages trying to identify the thread with no success, and Bechstein were no help.  I then spent another age looking for a machine shop that could reproduce the screw and finally came across a young machinist for whom it was no problem at all.  He did a perfect job and asked me for $20, so I gave him $40.</div> <div><br></div> <div>If you look hard enough you will find a machinist whose brain is not befuddled with CNC and has learned to do a simple job the proper way.</div> <div><br></div> <div>JD</div> <div><br></div> <div><br></div> <div><br></div> </body> </html>