<p dir="ltr">Thanks</p>
<p dir="ltr">Mr. Ira Erbs<br>
Portland,OR</p>
<div class="gmail_quote">On Feb 10, 2016 8:16 PM, "Curtis Arndt" <<a href="mailto:cnaarndt@gmail.com">cnaarndt@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div>Ira,<br><br></div>I believe that I ordered them years ago from Namrick in England, but I just checked their website and cannot find BA Screws. I just checked with British Tools & Fasteners and they have 4BA X 1/4" slotted screws...<br><br><a href="http://britishfasteners.com/screws/steel-screws/ba-countersunk-screws.html" target="_blank">http://britishfasteners.com/screws/steel-screws/ba-countersunk-screws.html</a><br><br></div><div>This is most likely where I ordered them from last.<br></div><div><br></div>Cheers,<br><br></div>Curt<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Feb 10, 2016 at 7:29 PM, i erbs <span dir="ltr"><<a href="mailto:eyera3000@gmail.com" target="_blank">eyera3000@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Curt, Do you have source for the screws? I think that is where this thread started...</div><div class="gmail_extra"><br clear="all"><div><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr">Ira Erbs<div>Portland,OR</div><div><span style="font-family:'Times New Roman',serif"> _______ _______</span><br style="font-family:'Times New Roman',serif"><span style="font-family:'Times New Roman',serif"> (______ \____1959 BN4____/ _______)</span><br style="font-family:'Times New Roman',serif"><span style="font-family:'Times New Roman',serif"> (_________________________)</span></div><div> BT7 engine and disk brakes</div></div></div></div></div></div></div>
<br><div class="gmail_quote"><div><div>On Wed, Feb 10, 2016 at 1:52 PM, Curtis Arndt <span dir="ltr"><<a href="mailto:cnaarndt@gmail.com" target="_blank">cnaarndt@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="ltr"><div><div><div><div>Windscreen screws on 100s are no. 4 BA. The six cylinder screws are NOT 2BA. AH Spares is wrong on this one.<br><br></div>Regarding no. 2 BA and 10-32 being similar they may be about the same size but they are in NO WAY interchangeable!!!<br><br></div>A 10-32 screw has 32 tpi and has a 60 degree pitch angle of the threads. A no. 2 BA has 31.4 tpi and is 47 1/2 degree pitch angle of the threads.<br><br></div>Cheers,<br><br></div>Curt <br>AH Concours Registry Chairman and fastener expert<br></div><div class="gmail_extra"><br><div class="gmail_quote"><span>On Wed, Feb 10, 2016 at 1:31 PM, Ian Hey <span dir="ltr"><<a href="mailto:rianhey@btinternet.com" target="_blank">rianhey@btinternet.com</a>></span> wrote:<br></span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>
<u></u>
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<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">Hello All<u></u><u></u></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">I have a BJ7 and have been told (by AH Spares) that the
windscreen screws are 2BA. That is similar to No10 UNF so that is what
mine now are.<u></u><u></u></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">No 6-36 sounds as if it is very similar to 4BA which is
0.142 inch diameter, 38.5 threads per inch. BA (British Association)
threads are widely used for threads less than ΒΌ inch in all British mechanical
and electrical equipment up to the 1960s and 1970s. They have probably
died out now in new equipment. The largest is 0BA which has a diameter of
0.236 inch.<u></u><u></u></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">I suspect that the windscreen screws referred to as No 6-36
are actually 4BA<u></u><u></u></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">Regards<span><font color="#888888"><u></u><u></u></font></span></span></font></p><span><font color="#888888">
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><u></u><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">Ian Hey</span></font><u></u><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"><u></u><u></u></span></font></p>
<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font size="3" face="Arial"><span style="font-size:12.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
</font></span></div>
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