In a message dated 3/31/06 1:12:25 P.M. Greenwich Standard Time,
I would recommend is replacing the tower bolts every eight to ten years
as they will deteriorate due to galvanic action. This is possible, even
with the tower in place, as there are two sets of bolts at each leg joint.
And this problem can be pretty much eliminated by used stainless steel bolts.
TowerTalk mailing list