[TowerTalk] Tree's and Screws

[Gary]

The QST Article from September 1989, "The Care and Feeding of an Amateur's Favorite Antenna Support - the Tree" says Cadmium plated (but I think avoiding Copper is the main thing). The author also mentions removing when done. It's a pretty good article. He is not a fan of topping trees!

73,
Gary kk0sd

-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Grant Saviers
Sent: Thursday, August 20, 2020 10:41 AM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] Tree's and Screws

I've put a lot of Zn plated and mostly hot dip galvanized lag bolts into trees of all varieties over the years and seen no problems except the need to back them out a bit as the tree grew around them. A good sign I think.  When installed, I leave at least 3/8 to 1/2" slack for growth.

The arborist or mill that might prune or harvest the tree someday would appreciate their removal when no longer needed.  Instant trashing of a saw chain.

Absolutely no copper or Cu alloys (bronze, brass) or plating should be used.  Stainless I think is ok, but rarely has been my fastener.

Grant KZ1W

PS: hope you don't contest with your call  ;)

On 8/20/2020 05:09, Larry Stowell wrote:
> I think it was on this reflector that somebody mentioned what material
> 
> a screw good be with out harming the tree? I want to tie off a dipole.
> 
> thanks
> 
> 73 Larry K1ZW
> 
> 
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