[RE-wrenches] Broken bolt

[Jerry Shafer]

Jim
I cant agree, lub on threads reduces false torg and prevents damage to the
treads, FYI every engine uses oil on the threads for this same reason.
Now looking at the stud it is bent not much but it is and if it was
overtorqed or thread damage, it it is easy to check, band saw down the long
line and see if the nuts fall off, if they do its the stud or high torg if
not its thread damage.
Jerry

On Oct 3, 2018 6:48 AM, "Jim Duncan" <ntrei at 1scom.net> wrote:

By no means should you ever put a lubricant on threads. Grease will
lubricate and reduce friction. Friction is what holds the threads tight
against each other. If it's SS into SS you know already to use anti-seize
compound which contains powdered metal, nickel/silver or copper/orange.

Jim Duncan

North Texas Renewable Energy [retired]
On 10/2/2018 10:26 AM, Jerry Shafer wrote:

Ron
It almost looks like the bolt to stud is off center as it might be gauling
causing pre-mature torq on the stud that can lead to failure, try grease
paste on the threads next time, it might help.
Jerry

On Tue, Oct 2, 2018, 1:14 AM Ron Young <solareagle at solareagle.com> wrote:

> Anyone seen this before, the bolt on a shunt inside a Magnum inverter
> snapped right off, other half inside the shunt. I was tightening it but I
> don’t believe excessively. It appears to be crystallized. Magnum is
> replacing the shunt but it’s my good luck that the job is 5 hours into a
> remote backwater along a punishing road.
>
>
> Ron Young
> earthRight Solar - Solareagle.com
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