<div dir="ltr">Michael,<div><br></div><div>As I understand your question...</div><div><br></div><div>The first problem is that the fasteners on 100s (BN1/2) engines are Whitworth (55°
thread pitch angle) BSF (British Standard Fine). As such a 3/8" BSF fastener has 20 tpi.<div><br></div><div>A 3/8 X 24 tpi fastener is a standard UNF, ANF or SAE Fine thread,
basically a US Hardware store fastener,
and is totally incompatible! These not only have a different tpi, but they are a 60<span style="font-size:14pt;line-height:107%;font-family:Calibri,sans-serif">°</span> thread pitch angle.</div><div><br></div><div>-Curt</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Sep 11, 2019 at 1:59 PM Randy Hicks via Healeys <<a href="mailto:healeys@autox.team.net">healeys@autox.team.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;">Received this from a friend. Can anyone help out?<div><br></div><div>Randy<br><div><br><blockquote type="cite"><div>Begin forwarded message:</div><br class="gmail-m_3276821007699913300Apple-interchange-newline"><div style="margin:0px"><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif;color:rgb(0,0,0)"><b>From: </b></span><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif">michael mc burney <<a href="mailto:mcb.1@comcast.net" target="_blank">mcb.1@comcast.net</a>><br></span></div><div style="margin:0px"><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif;color:rgb(0,0,0)"><b>Subject: </b></span><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif"><b>RE: Hi Randy, I am stumped. michael.</b><br></span></div><div style="margin:0px"><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif;color:rgb(0,0,0)"><b>Date: </b></span><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif">September 11, 2019 at 4:54:14 PM EDT<br></span></div><div style="margin:0px"><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif;color:rgb(0,0,0)"><b>To: </b></span><span style="font-family:-webkit-system-font,"Helvetica Neue",Helvetica,sans-serif">Randy Hicks <<a href="mailto:randyhicks@me.com" target="_blank">randyhicks@me.com</a>><br></span></div><br><div><div style="overflow-wrap: break-word;"><div><br></div><div> Hello Randy, Hate to bother but I am stumped over a simple fastener problem. I am attempting to mount</div><div> my spare BN2 block onto a engine stand. Problem is with the four fasteners needed to do this. I have tried</div><div> all the bolts I think should work, but no! I thought the engine plate/xmission, bell housing used 3/8 by 24.</div><div> The cap screws will thread into the block but will not tighten. Do you/or one in the healey nation/ happen to</div><div> know the proper cap screw/bolt that will do the trick??? </div></div></div></blockquote></div></div></div>_______________________________________________<br>
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