[AT] OT...Need some advice on old metal building

[Ken Knierim]

On Fri, Sep 14, 2012 at 8:22 AM, Mogrits <mogrits at gmail.com> wrote:

> I'm adding onto what's likely the oldest pre-engineered metal building
> I've ever seen, much less worked on for a customer. We are going to
> re-skin the existing building and add insulation while we're at it.
>
> However, the darned thing is sheeted with dome headed slotted screws
> and inside each has a square nut. Removing them is giving my erection
> crew a fit. Anyone have a suggestion on how to remove these things or
> a quick way to knock the heads off. It being a working building, it's
> really going to be an issue trying to get to the nuts when we get to
> the roof. We've tried grinding them off and chiseling them off but
> haven't found the right way to make some time.
>
> Thanks
> Warren
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Have you tried tightening them instead? That will probably snap them off.
Not sure if that's what you're looking for but...

We put a hopper bin together with a dome shaped slotted screw with square
nuts and we could break those silly things with hand tools. Where the head
attached to the screwed part was soft, weak or whatever and would just pop
off if you reefed on it with a large screwdriver, let alone an open end
wrench. Made air tools useless since we couldn't set the torque low enough.
A butterfly wrench might work now but Dad didn't have one back in the day.

Ken in AZ.