[TowerTalk] Source for 2" OD Mast

[Jerry Gardner]

On Fri, Jan 4, 2013 at 1:40 PM, Rick Karlquist <richard at karlquist.com>wrote:

> Also, pipe is never 2" OD.  So called 2 inch pipe has a 2.375" OD.
> It won't fit most tower hardware.
>

That goes to show how much I don't know about masts. I'm planning to use a
Rohn TB3 thrust bearing at  the top of the tower -- what tubing OD would I
specify to a metal dealer to get something that is compatible with the TB3?

Most of the places I've called sell the 4130 tubing "raw", e.g. not
galvanized. Does galvanizing the mast change its OD to the point where it
won't work in the TB3?

73, Jerry