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Re: [TowerTalk] Never-Seez and noalox?

Subject: Re: [TowerTalk] Never-Seez and noalox?
From: "Roger (K8RI)" <>
Date: Tue, 07 Dec 2010 23:30:02 -0500
List-post: <">>

On 12/7/2010 7:43 AM, Jim Thomson wrote:
> Date: Mon, 06 Dec 2010 14:29:39 -0500
> From: "Roger (K8RI)"<>
> Subject: Re: [TowerTalk] Never-Seez and noalox?
> I'd not use any lube on tower joints, or any material that would reduce
> the gripping action of the leg overlap as that would reduce the over all
> tower strength and put more load on the bolts, which could lead to the
> elongation of the bolt holes.
> Also when use on bolt threads the torque required for a specific linear
> pull on the bolt is reduced substantially. In compression on a tower
> leg  never-seez on the threads can lead a greatly increased crushing
> force on the tower legs. That needs to be taken into account when used
> on tower bolts.
> 73
> Roger (K8RI)
I think we said the same thing Jim except with different words. I use 
Never-Seez on tower bolts and take that into consideration when 
tightening them OTOH I never use it or Noalox on the overlapping joints 
where the tower depends on the gripping action of one section on the next.


Roger (K8RI)
> ##  There is nothing wrong with using never seize on tower leg bolts, done 
> all the time.
> Portland bolt engs tell me that when bolts are lubricated, you need  no where 
> near the
> torque to get the same amount of tightness.   Tightness and torque are 2  x 
> different things!
> EG:  a 3/8"  g-5 bolt  requires  38 ft lbs of torque when 'dry'..... but only 
> 23 ft lbs  when
> lubricated.   Now if Joe ham lubricates the bolts [and mating nuts]... and 
> uses 38 ft lbs of
> torque, you will have over tightened the  bolt !   The engs also told me that 
> to use those
> max torque figures they provide for the bigger bolts with caution..esp  when 
> UN lubricated.
> They tell me they break bolts all day long in the lab, when those UN 
> lubricated max torque
> numbers are used.  I lube all bolts  [ and nuts]  with lockite brand  never 
> seize.   The marine grade
> brand offered by most  'never seize'  makers  is the best you can get.  Made 
> for fresh and salt water
> environments. [IE:  rain  for typ ham use].
> ##  On both tower legs bolts  like rohn 45-55 legs..and also  typ  al booms  
> used for ants, there is no need
> to crank bolts  super tight.   You get em so tight, and after that, the 
> tightness  drops off... since you are then
> just  crushing the tubing.   On F-12 al booms, they use a combo of 3/16"  
> solid AL rivets and  1/4"  SS bolts
> [with SS nylocks].   I supplement the 1/4"  SS bolts  with another 8 x 3/16"  
> solid AL rivets.
> ##  I use  never seize on all  SS bolts and screws, when used outside..esp 
> when SS nylocks used,  other wise
> SS  will gaul the threads.
> later...  Jim   VE7RF
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