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--></style></head><body lang=EN-US link=blue vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Thanks for all your replies. I will add BSC to my fastener list. I will see if I can locate a die.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Harold<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b>From: </b><a href="mailto:ah100tech@gmail.com">john harper</a><br><b>Sent: </b>Sunday, August 8, 2021 12:33 PM<br><b>To: </b><a href="mailto:gradea1@charter.net">Hank Leach</a><br><b>Cc: </b><a href="mailto:manifold@telus.net">Harold Manifold</a>; <a href="mailto:healeys@autox.team.net">healeys@autox.team.net</a><br><b>Subject: </b>Re: [Healeys] Speedo Drive Thread Size?</p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Harold</p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I can confirm that in my documents there is a section British Standard Cycle thread. Diameters are from 1/8" to 3/4", the largest. TPI is from 40 thru 26. It is a 60-degree form rounded on top and inside.</p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>It first became a recognized standard in 1902</p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Best regards</p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Sun, 8 Aug 2021 at 18:45, Henry G Leach via Healeys <<a href="mailto:healeys@autox.team.net">healeys@autox.team.net</a>> wrote:</p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><p class=MsoNormal>Harold-you can get these parts at: <a href="https://britishfasteners.com/">https://britishfasteners.com/</a></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'>They have all the British sizes and tools to boot including BSC! Hank</p><p>-----------------------------------------</p><p class=MsoNormal style='margin-bottom:12.0pt'>From: "Harold Manifold via Healeys" <br>To: "Ken Fleming via Healeys"<br>Cc: <br>Sent: Sunday August 8 2021 9:27:29AM<br>Subject: [Healeys] Speedo Drive Thread Size?</p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Just when I thought I had a handle Whitworth, BSPP, BSPT, SAE, UNF, etc. along comes BSC (British Standard Cycle). The threads on the transmission speedo drive and the angle drive are not the best and could use a refreshed. The pitch is 26 TPI and the diameter is ¾” as best I can measure. After searching Google the closest match I could find is 3/4" X 26 TPI BSC.</p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I have never heard of British Standard Cycle before. Can anyone confirm if this is the tread size?</p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Harold</p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> </p></div></div></div></blockquote></div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:4.8pt'>_______________________________________________<br>Support Team.Net <a href="http://www.team.net/donate.html">http://www.team.net/donate.html</a><br>Suggested annual donation $12.75<br><br>Archive: <a href="http://www.team.net/pipermail/healeys">http://www.team.net/pipermail/healeys</a> <a href="http://autox.team.net/archive">http://autox.team.net/archive</a><br><br><a href="mailto:Healeys@autox.team.net">Healeys@autox.team.net</a><br><a href="http://autox.team.net/mailman/listinfo/healeys">http://autox.team.net/mailman/listinfo/healeys</a><br><br>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/healeys/ah100tech@gmail.com">http://autox.team.net/mailman/options/healeys/ah100tech@gmail.com</a></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>