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Re: [TowerTalk] Mast slippage

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Mast slippage
From: john@kk9a.com
Date: Fri, 31 Jul 2020 11:36:35 -0500
List-post: <mailto:towertalk@contesting.com>
Will 3/8 bolts fit into a plate designed for M8? I believe that stainless steel bolts are typically not much stronger than grade 2. Grade 8 bolts are available with Armor Coat which has great corrosion protection.

John KK9A


Les Brown VE3NNT wrote:

Thanks for all the advice guys. I think I'll start with replacing the SS M8 bolts with 3/8 inch grade 8 bolts (or grade 9 or 10?) to see if that solves the problem. If it doesn't, I'll have to try the K7NV clamp, but that will require me to remove the rotor to slip the clamp on to the bottom of the mast, which won't be so easy. Given that half the mast is sticking out of the top of the tower, I'll have to rig up some pipes to hold the bottom of the mast in place for the operation. It sounds like drilling and pinning isn't a good solution, and not so easy to do.
73, Les VE3NNT

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