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Old 11-04-2017, 06:17 PM   #1
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Default Fastening to Insulated Steel Wall Panels

I'm working on a commercial steel building with girts, purlins and insulated steel wall panels. I'm a low voltage contractor and will be attaching cameras, camera housings, and an alarm bell/housing on the exterior. Most areas are quite easy with some interior drywall and attaching EMT to girts and purlins. But, it's the insulated steel wall panels that pose a bit of a challenge. I see where various trades people have done various things to a fasten to these walls for exterior lights and other interior devices. Some of their techniques looks somewhat dodgy.

Some existing exterior devices, attached long ago, are attached with machine bolts/nuts completely through the wall, but I see where tightening these has created an indentation on the wall.

The insulated steel walls appear to be 26 - 24 gauge, and using a self tapping sheet metal screw can easily strip the hole causing the screw to spin freely if not careful.

I see where the walls are attached to the girts with what appear to be heavy duty rivets. I don't want to do that in the event something needs to be moved.

What seems to work best with these walls? Something similar to molly bolts perhaps?
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Old 11-04-2017, 06:37 PM   #2
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If it is something light, #10x1 stainless wood screws, otherwise fab-lok fasteners.

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Old 11-04-2017, 07:15 PM   #3
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Thanks for the quick reply. This looks like the thing to use. The heaviest device I'll be installing is an outdoor bell in a tampered housing, 15.5 lbs., the cameras and mounts won't be any heavier.

These look like heavy duty molly bolts. I see some distributors sell them by the lot, minimum 1000 for $700.00. I'd never use that many, so I'll be checking my suppliers.

Thanks again.
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Old 11-04-2017, 07:41 PM   #4
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The fastener that @ppsh looks excellent but they make a similar anchor that may be cheaper. It's like the old fashioned hollow wall anchors / drive anchors, but it works with very thin materials.



You can also use rivet nuts, which are exactly what they sound like.
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Old 11-04-2017, 08:29 PM   #5
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Thanks Splatz. The image @ppsh sent shows a distributor www.windstormproducts.com, which sells them individually in various sizes .86 ea., .93ea., and 1.00 ea., for the sizes I may need. The image you posted looks good too. Is there a brand and model to look up on those?
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Old 11-16-2017, 05:43 AM   #6
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Quote:
Originally Posted by RickM15752 View Post
Thanks Splatz. The image @ppsh sent shows a distributor www.windstormproducts.com, which sells them individually in various sizes .86 ea., .93ea., and 1.00 ea., for the sizes I may need. The image you posted looks good too. Is there a brand and model to look up on those?
I forgot about this until yesterday, I was working at a glass shop and asked the glasiers about it, a common term for these is "jack nut".

I have shown some restraint and only used the term "jack nut" maybe fifty or sixty or at most a couple hundred times since learning it yesterday.

Jack nuts are now obviously my favorite fastener of all time.

https://www.amazon.com/dp/B00NUFMIIO...UFMIIO5268055/

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Old 11-16-2017, 05:47 AM   #7
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Quote:
Originally Posted by splatz View Post
I forgot about this until yesterday, I was working at a glass shop and asked the glasiers about it, a common term for these is "jack nut".

I have shown some restraint and only used the term "jack nut" maybe fifty or sixty or at most a couple hundred times since learning it yesterday.

Jack nuts are now obviously my favorite fastener of all time.

https://www.amazon.com/dp/B00NUFMIIO...UFMIIO5268055/

How do you come off using 'jack-nut' ?
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Old 11-16-2017, 06:09 AM   #8
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How do you come off using 'jack-nut' ?
AAAaggghhh.... my head ... tooo ... many ..... jokes.....
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Old 11-16-2017, 07:07 PM   #9
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Google Sammys steel fasteners. They will have what you need.
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