<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 ¼ 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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