<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=us-ascii" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 11.00.10570.1001"></HEAD>
<BODY>
<DIV dir=ltr align=left><SPAN class=096222417-20122020><FONT color=#0000ff
size=2 face=Arial>Michael,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=096222417-20122020><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=096222417-20122020><FONT color=#0000ff
size=2 face=Arial>After learning from several of my mistakes when I mismatched
fasteners on my 1960 BT7 I always measure twice and assemble once. I have an
original of the part in the picture. The big end is 20 TPI with a major diameter
that matches a 7/16 UNF. A 7/16 - 20 UNF nut fits. The small end is 24 TPI
and the closest major diameter would be a 3/8 UNF but the diameter is
undersized however a 3/8 - 24 UNF nut does fit.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=096222417-20122020><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=096222417-20122020><FONT color=#0000ff
size=2 face=Arial>To help identify the tread type I measure the TPI and the
major diameter and the go to this website to see what fits. Knowing the tread
pitch helps to narrow down the possibilities.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=096222417-20122020><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=096222417-20122020><FONT color=#0000ff
size=2 face=Arial><A
href="https://www.ring-plug-thread-gages.com/ti-thread-data-charts.html">https://www.ring-plug-thread-gages.com/ti-thread-data-charts.html</A></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=096222417-20122020><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=096222417-20122020><FONT color=#0000ff
size=2 face=Arial>I trust this helps.... Harold</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=096222417-20122020><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=096222417-20122020><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV><BR>
<DIV lang=en-us class=OutlookMessageHeader dir=ltr align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B> Healeys
[mailto:healeys-bounces@autox.team.net] <B>On Behalf Of </B>Kees
Oudesluijs<BR><B>Sent:</B> Sunday, December 20, 2020 2:50 AM<BR><B>To:</B>
healeys@autox.team.net<BR><B>Subject:</B> Re: [Healeys] What
Thread?<BR></FONT><BR></DIV>
<DIV></DIV>
<P>If UNF7/16 is just to large it may be metric, probably M10. In that case the
stud's outside diameter should be just shy of 10,0mm or at most 10,0mm when it
is shoddily cut.</P>
<P>Kees Oudesluijs</P>
<P><BR></P>
<DIV class=moz-cite-prefix>Op 20-12-2020 om 11:12 schreef john harper:<BR></DIV>
<BLOCKQUOTE
cite=mid:CAL28cLWoo1wqR2=VSv0j7g-1-2B35CFvXBH06zZPU6xn=cY40A@mail.gmail.com
type="cite">
<DIV dir=ltr>Mike
<DIV><BR></DIV>
<DIV>Both treads should be BSF. The problem is that not enough attention is
given to detail. Suppliers cannot bother to get things correct but they
know they have used an incorrect thread or otherwise, they would not have
supplied the nuts. The treads are most likely metric.</DIV>
<DIV><BR></DIV>
<DIV>Rgds</DIV></DIV><BR>
<DIV class=gmail_quote>
<DIV class=gmail_attr dir=ltr>On Sun, 20 Dec 2020 at 09:19, Michael MacLean
<<A href="mailto:rrengineer.mike@att.net"
moz-do-not-send="true">rrengineer.mike@att.net</A>> wrote:<BR></DIV>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; BORDER-LEFT: rgb(204,204,204) 1px solid; MARGIN: 0px 0px 0px 0.8ex">The
threaded pillar in the picture was purchased from Ahead4Healeys. This
is the pillar for the generator adjusting bracket. It came without the
nuts needed for the ends. I can't figure out what type of threads
these are. I bought a 1/2" BSF nut and a 7/16 BSF nut for it.
Problem is both of those nuts are too loose. When I try to tighten the
large thread on the front engine plate it will not tighten up. It gets
almost tight then pops loose and spins. The threads on the pillar are
not damaged, so it must be the wrong nut. Same for the other
end. A UNF nut will not go more than a couple of turns then
stops. I even tried running a metric die over the threads and no
dice. I am confused.
<DIV
id=gmail-m_7879211163302127992yMail_cursorElementTracker_1608455436597>Mike
MacLean
<DIV><IMG
id=gmail-m_7879211163302127992ymail_attachmentIda438176d-7ec7-4968-9c47-3c13fcadcf6e
style="MAX-WIDTH: 800px; WIDTH: 100%"
src="cid:096222417@20122020-1722"><BR></DIV><BR><BR><BR>
<DIV id=gmail-m_7879211163302127992ymail_android_signature><A
id=gmail-m_7879211163302127992ymail_android_signature_link
href="https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature"
target=_blank moz-do-not-send="true">Sent from AT&T Yahoo Mail on
Android</A></DIV></DIV>_______________________________________________<BR>Support
Team.Net <A href="http://www.team.net/donate.html" rel=noreferrer
target=_blank
moz-do-not-send="true">http://www.team.net/donate.html</A><BR>Suggested
annual donation $12.75<BR><BR>Archive: <A
href="http://www.team.net/pipermail/healeys" rel=noreferrer target=_blank
moz-do-not-send="true">http://www.team.net/pipermail/healeys</A> <A
href="http://autox.team.net/archive" rel=noreferrer target=_blank
moz-do-not-send="true">http://autox.team.net/archive</A><BR><BR><A
href="mailto:Healeys@autox.team.net" target=_blank
moz-do-not-send="true">Healeys@autox.team.net</A><BR><A
href="http://autox.team.net/mailman/listinfo/healeys" rel=noreferrer
target=_blank
moz-do-not-send="true">http://autox.team.net/mailman/listinfo/healeys</A><BR><BR>Unsubscribe/Manage:
<A href="http://autox.team.net/mailman/options/healeys/ah100tech@gmail.com"
rel=noreferrer target=_blank
moz-do-not-send="true">http://autox.team.net/mailman/options/healeys/ah100tech@gmail.com</A><BR><BR></BLOCKQUOTE></DIV><BR>
<FIELDSET class=mimeAttachmentHeader></FIELDSET> <PRE class=moz-quote-pre wrap="">_______________________________________________
Support Team.Net <A class=moz-txt-link-freetext href="http://www.team.net/donate.html">http://www.team.net/donate.html</A>
Suggested annual donation $12.75
Archive: <A class=moz-txt-link-freetext href="http://www.team.net/pipermail/healeys">http://www.team.net/pipermail/healeys</A> <A class=moz-txt-link-freetext href="http://autox.team.net/archive">http://autox.team.net/archive</A>
<A class=moz-txt-link-abbreviated href="mailto:Healeys@autox.team.net">Healeys@autox.team.net</A>
<A class=moz-txt-link-freetext href="http://autox.team.net/mailman/listinfo/healeys">http://autox.team.net/mailman/listinfo/healeys</A>
Unsubscribe/Manage: <A class=moz-txt-link-freetext href="http://autox.team.net/mailman/options/healeys/coudesluijs@chello.nl">http://autox.team.net/mailman/options/healeys/coudesluijs@chello.nl</A>
</PRE></BLOCKQUOTE></BODY></HTML>