Stainless steel threads have a tendency to gall, especially if the bolt is
over-torqued. Once this happens, the bolt will not reverse and the head
usually breaks off while trying to remove it.
My experience is that hot dipped galvanized bolts do not rust. Many are
grade 3 which is fairly soft and will break. I always look for grade 5
(three marks on head) which is difficult to break. Electroplated bolts
always seem to rust after a few years. I do not use them outdoors.
Keith NM5G
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Bill Fuqua
Sent: Tuesday, February 01, 2005 12:39 PM
To: towertalk@contesting.com; FireBrick
Subject: [TowerTalk] Re: TowerTalk Digest, Vol 26, Issue 4
Gee, I have never broken a stainless steel bolt. They have been too hard.
I have broken galvanized steel bolts. Particularly after they have rusted a
bit.
73
Bill wa4lav
At 01:30 PM 2/1/2005 -0500, you wrote:
>I've been told by both the rotator repair men this.
>And many towertalkians have agreed.
>
>when that stainless bolt breaks or gauls.
>You will be swearing mightlily.
>
>Darn near impossible to drill out a broken stainless bolt without
>damaging the threads.
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|