<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Thanks Mike,</div><div>yes I was looking at the round type.</div><div>Great suggestion about squaring off the flange, hadn't thought about</div><div>them spinning!</div><div>The type with the large thread on the outside, I have seen in kitset</div><div>furniture.</div><div>I am intending to source a 316 threaded insert with flange & now that</div><div>you've got me thinking, it might pay to grind in to them a bit first to</div><div>help with the adhesion.</div><div>What application have you been using them in Mike?</div><div>Cheers Alan</div><div><br>On 29/12/2018, at 5:00 PM, Michael Dell via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="auto">Are these the circular type as in the outside shape? If so I would square off the flange end to prevent them becoming loose in the epoxy bedding resin, I have had a few do this due to over tightening of the bolts and if they need to be replaced they are not easy to remove... I haven't had much to do with the type you mention with thread on the outside but would think it could only help prevent such problems. <div dir="auto"><br></div><div dir="auto">Also you would get a much better adhesion to the alloy if you used a methacrylate type adhesive such as Plexus, the alloy is etched using a primer (a plexus product) to ensure maximum adhesion, a little more expensive than epoxy but worth it for the peace of mind... <div dir="auto"><br></div><div dir="auto">Mike</div></div></div><br><div class="gmail_quote"><div dir="ltr">On Fri, 28 Dec 2018, 8:22 p.m. Alan James via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2501"> Hi,</div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2494" dir="ltr">is anyone using threaded inserts in fiberglass to attach components.</div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2487" dir="ltr">I was looking at attaching my ballast valves & lights as per attached drawing</div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2368" dir="ltr">with the flanged end of threaded inserts fitted in to holes drilled in my ballast</div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2369" dir="ltr">tank, & then filled in with epoxy around them.</div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2370" dir="ltr">Most of the images I have see in searches show the flange at the top, but I thought it would</div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2371" dir="ltr">be stronger with the flange embedded. There are other versions of the threaded</div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2424" dir="ltr">insert that have an additional large thread on the outside. </div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2425" dir="ltr">I thought it would be easy to locate the inserts in relation to the holes in the top ballast</div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2426" dir="ltr">plate by screwing them up to the plate with the retaining bolts & pushing them down</div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2486" dir="ltr">in to slightly oversized holes in the fiberglass that are half filled with epoxy.</div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2485" dir="ltr">when the epoxy sets just unscrew the bolts & fill in the rest of the way round the </div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2484" dir="ltr">inserts.</div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2527" dir="ltr">Alan</div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2538" dir="ltr"><br></div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2483" dir="ltr"> </div><div id="m_2341339540869665813yui_3_16_0_ym19_1_1545991034117_2384" dir="ltr"><br></div></div></div>_______________________________________________<br>
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