<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-size: 13px;color: rgb(0, 0, 0);font-family: arial, sans-serif;"><br>Hi Jon,<div><br></div><div>I bought a Aluminum gantry Crane with the same type of I-beam you describe. It came with a bunch of assembly hardware (I've not assembled it yet). Tonight I'll check to see how they are dealing with the taper. I was also wondering if there was a special trolley for these tapered I-Beams, since cheap ones will ride on the outer edge of the I-beam, where it's the thinnest. My I-Beam in 6" by 3.5", the whole crane is rated for 2000lb (enough for a K250 hull).</div><div><br></div><div>Cheers,</div><div> Ian.<br><blockquote style="padding-left: 5px; margin-left: 0px; border-left: #0000ff 2px solid; font-weight: normal; font-style: normal; text-decoration: none; font-size: 10pt; font-family: arial,sans-serif; color: black;">-----Original Message-----
<br>From: Jon Wallace via Personal_Submersibles <personal_submersibles@psubs.org>
<br>Sent: Jul 10, 2018 10:12 AM
<br>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org>
<br>Subject: Re: [PSUBS-MAILIST] Wanted: Aluminum I-beam
<br><br><zzzhtml><zzzhead></zzzhead><zzzbody><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1531186395801_78581"><span><br></span></div><div id="yui_3_16_0_ym19_1_1531186395801_78581"><span id="yui_3_16_0_ym19_1_1531186395801_78600">Before I make a final decision, I have found a suitable i-beam for my application that is very reasonably priced. The problem is that it is American Standard "S" shape which means the flanges taper toward the web. Since I have to bolt it through the tapered flange to another member the nut will not sit flat against the flange. Is this a problem and is there a fix to it? beveled washer necessary?</span></div><div id="yui_3_16_0_ym19_1_1531186395801_78581"><span><br></span></div><div id="yui_3_16_0_ym19_1_1531186395801_78581"><span>Jon</span></div></div></zzzbody></zzzhtml></personal_submersibles@psubs.org></personal_submersibles@psubs.org></blockquote></div></div></body></html>