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
I don’t believe the problem was galling, the bolt was already seated and I was
just doing a final torque on it. Tightening wasn’t excessive for the size of
the bolt. Looking at the cross section of the bolt it just doesn’t look like it
has solidified in the mfg. process. I think oxides were form
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 Dun
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 wrote:
> Anyone seen this before, the bolt on a shun
How many lugs were under the bolt? It looks possibly like it didn't
have enough threads into the shunt. I replace the bolt with a longer
one, if I have more than one lug. Also I use the thin lugs that come in
Outback, Magnum, and Midnite equipment; I never use those super thick
lugs that most
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 back
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