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<div class="moz-cite-prefix">The Simpson screws look very similar to
the Headloks. I just looked at the Simpson SDS, and I see they
are available in 316 Stainless as well.<br>
That would be my choice near the ocean, but I'm guessing they're
spendy.<br>
<pre class="moz-signature" cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified, Licensed Contractor
808 269-7491</pre>
On 2/18/2013 11:08 AM, William Miller wrote:<br>
</div>
<blockquote
cite="mid:6.0.1.1.2.20130218100541.02df1ec0@millersolar.com"
type="cite">
Ray:<br>
<br>
We use the Simpson 1/4 by X" "Strong Drive" (SDS
series). We get them in the hot dip galvanize version. They
are readily available locally. I think building officials like
the
Simpson name on structural products. They self drill and we have
had no instance of them snapping off while being driven.<br>
<br>
William Miller<br>
<br>
At 09:26 AM 2/18/2013, Ray Walters wrote:<br>
<blockquote type="cite" class="cite" cite="">I've got a project
right now on a
steel roof. I was just at a trade show last week, so I got to
look
at the latest gizmo from S5. <br>
I didn't like it at all, it didn't go into the valleys like the
old
mount, but drilled 4 holes into the side of the ridge, and just
counted
on the roofing to hold the modules.<br>
I wanted to use the new ZEP rack, but never heard back from
them, I guess
my project is too small (4 Kw).<br>
I'm going with SnapNRack blocks through the ridge top, and I'm
going to
go through the purlins into rafters or 2x blocking as needed.<br>
<br>
Also, a related subject, I'm using the new HeadLok Lags from
FastenMaster. They claim to be stronger than a 3/8" lag, but
they have a 3/16"D shaft.<br>
I've had trouble with regular cheap Home Depot lags twisting
off, so at
least these have actual strength ratings, and don't require
predrilling.<br>
They also have a no rust guarantee....<br>
Has anybody else used these? (or the similar Timberlok)?<br>
<br>
Thanks,<br>
<br>
<pre>R.Ray Walters
</pre>
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