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BA screws are mainly used for small items. E.g. the SU fuel pump uses
2BA and 4BA (even today on Burlen SU replacement pumps) and very
possibly some of the instruments use BA threads as well.
Kees Oudesluijs
Op 21-2-2019 om 22:55 schreef mike brooks:
> I hesitate to write this as I am effectively arguing with people far
> more knowledgeable than I am. However, I have several times noticed
> that people are saying that 10 32 bolts or screws were used on Healeys
> when I know they are actually 2BA. Although UK started using UNC and
> UNF bolts and screws as Whitworth and BSF went out of fashion ( and
> prior to metrication), the small  Unified sizes that had numerical-
> only designations (like 8, 10) were very rarely used in the UK, where
> we carried on with BA for the smaller sizes.
>
> Rgds
>
> Mike Brooks
> BN2 Scotland
>
> Sent from Yahoo Mail on Android
> <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>
>
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<p>BA screws are mainly used for small items. E.g. the SU fuel pump
uses 2BA and 4BA (even today on Burlen SU replacement pumps) and
very possibly some of the instruments use BA threads as well.</p>
<p>Kees Oudesluijs</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">Op 21-2-2019 om 22:55 schreef mike
brooks:<br>
</div>
<blockquote type="cite"
cite="mid:1189033003.2065239.1550786108358@mail.yahoo.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
I hesitate to write this as I am effectively arguing with people
far more knowledgeable than I am. However, I have several times
noticed that people are saying that 10 32 bolts or screws were
used on Healeys when I know they are actually 2BA. Although UK
started using UNC and UNF bolts and screws as Whitworth and BSF
went out of fashion ( and prior to metrication), the small
 Unified sizes that had numerical- only designations (like 8, 10)
were very rarely used in the UK, where we carried on with BA for
the smaller sizes.
<div id="yMail_cursorElementTracker_1550785863649"><br>
</div>
<div id="yMail_cursorElementTracker_1550785865399">Rgds</div>
<div id="yMail_cursorElementTracker_1550785866493"><br>
</div>
<div id="yMail_cursorElementTracker_1550785867721">Mike Brooks</div>
<div id="yMail_cursorElementTracker_1550785871751">BN2 Scotland<br>
<br>
<div id="ymail_android_signature"><a
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";
moz-do-not-send="true">Sent from Yahoo Mail on Android</a></div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<pre class="moz-quote-pre"
wrap="">_______________________________________________
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>
</pre>
</blockquote>
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