[Towertalk] Coding on Bolt Heads?

[FireBrick]

I've bookmarked that site.
Now my question is, what are the proper application for the different types
of bolts?
Which are stronger?
Which are less prone to fatigue?
etc.
I'm assuming that there are cases when too hard a bolt is undesirable.
But for tower and antenna work, which types of bolts are most useful.

And:
How do you rate the nuts.
Are there markings on them also?


> Eric.
>
> Take a look at  http://www.unified-eng.com/scitech/bolt/boltmarks.html
>
> See if that is what you want.
>
>
> 73 de Richard K0XG
>
> www.k0xg.com