[TowerTalk] ROHN TOWER BOLTS

Wed May 7 16:41:00 EDT 2014

NO FLAMES HERE!

Here is what I have for choices:

Not the average Home Depot / Lowes "Stuff"

A286 Super Alloy—With approximately 26% nickel and 15% chrome, this 
iron-based super alloy brings you the strength of alloy steel with 
corrosion resistance similar to 18-8 stainless steel. It meets ASTM A453 
Grade 660 and is not magnetic. Screws have a minimum Rockwell hardness 
of C31 and minimum tensile strength of 140,000 psi.

17-4 PH Stainless Steel Alloy—Combines the high strength of alloy steel 
with the corrosion resistance of stainless steel. It meets ASTM F593 
Grade 630 and is magnetic. Screws have a minimum Rockwell hardness of 
C31 and minimum tensile strength of 140,000 psi.

Alloy 20 Stainless Steel—Also known as Carpenter 20 screws. With 
excellent resistance to sulfuric acid, these screws have a minimum 
tensile strength of 80,000 psi.

I also have a choice of 18-8 or 316 SS Nylon lock nuts.

Tom W1ALZ

On 5/7/2014 4:13 PM, Mike Ryan wrote:
> My 2 more cents....
> I have used one or two stainless steel bolts in the past when short a 
> bolt. However, my recollection was that stainless steel is not as 
> strong as the bolts supplied with the tower and/or recommended. You 
> might want to be careful with these types of substitutions, (for 
> example the ss bolts and nylon nuts)...what grade/quality of 
> stainless? They sound good but..? Ok, now open to flames .... - Mike
>
> -----Original Message----- From: Tom Nicholson
> Sent: Wednesday, May 07, 2014 3:46 PM
> To: Mark Pride ; Mike Ryan ; towertalk at contesting.com
> Subject: Re: [TowerTalk] ROHN TOWER BOLTS
>
> Just my 2 pennies here, but I'm going to be using SS hardware but I'll
> be using SS Nyloc Nuts. Also if using SS, be sure to use never seize
> compound, if you don't, the nuts will almost for sure seize up if you
> try to remove at a latter date. Lesson "hard learned" with SS bumper
> bolts on my Hot Rod!!!
>
> Tom W1ALZ
>
>
>
>
> On 5/7/2014 9:50 AM, Mark Pride via TowerTalk wrote:
>> Heard a story many years ago about a tower that was installed in KH6 
>> with stainless steel hardware and after time, with the constant trade 
>> winds, the nuts all fell off.
>> There is vibration to contend with in certain places around the world.
>>
>> Regards,
>> Mark, K1RX
>>
>> On Wednesday, May 7, 2014 9:44 AM, Mark Pride via TowerTalk 
>> <towertalk at contesting.com> wrote:
>> One other point on the tower hardware from Rohn these days. They have 
>> changed their hardware where the nuts are designed to be put on the 
>> bolt ONE time. To remove the nut, one will damage the thread of the 
>> bolt (sorry - forgot the description of this design - lock nut?). 
>> Guess the concept is, you put up a tower one time and never take it 
>> down! However to their point, it prevents nuts from backing off (good 
>> thing).
>>
>> Regarding the new hardware you find in the tower leg of the new 
>> material - you might want to change it. The current nut design has 3 
>> indentations on the surface - pretty easy to spot. Bolts are fine, 
>> just need to change the nuts.
>>
>> Regards,
>> Mark, K1RX
>>
>> On Wednesday, May 7, 2014 7:43 AM, Mike Ryan 
>> <mryan001 at tampabay.rr.com> wrote:
>> Larry is correct in that both the 25 and 45 use different size bolts 
>> and if
>> my memory serves me, this would be 4 different sizes in the case of 
>> these
>> two tower types. I have never seen washers used with these. It is
>> noteworthy, that should you be putting tower sections up, to be 
>> ABSOLUTELY
>> sure that the legs are clear inside. Run a garden hose through the 
>> leg to be
>> sure there is no blockage, or even push a ground rod through each one 
>> for
>> example. I can't tell you how many times I have found blockage in the
>> legs...dirt, mud, bugs, etc. And while on the subject, occasionally 
>> found
>> that the blockage was TOWER BOLTS that were packed in the legs by the
>> manufacturer which had never been found/removed. -Mike
>>
>> -----Original Message-----
>> From: Larry
>> Sent: Wednesday, May 07, 2014 5:47 AM
>> To: towertalk at contesting.com
>> Subject: Re: [TowerTalk] ROHN TOWER BOLTS
>>
>> 25G and 45G use two different sizes at each joint on each leg. I 
>> forget what
>> size they are offhand. DX Engineering sells leg bolts and their web 
>> site may
>> tell you what the sizes are or the perhaps the Rohn web site.
>>
>> 73, Larry W6NWS
>>
>> -----Original Message-----
>> From: Cal Zethmayr
>> Sent: Wednesday, May 07, 2014 12:02 AM
>> To: towertalk at contesting.com
>> Subject: [TowerTalk] ROHN TOWER BOLTS
>>
>> There is quite a debate at one of our local Saturday morning breakfasts
>> gabfests about Rohn Tower Bolts.
>>
>> Some say that Rohn uses two different size bolt sets for each tower 
>> section.
>> Some say that Rohn uses only one size bolt-washer-nut sets for all 
>> towers.
>>
>> So what are the facts?
>>
>> Are there different size bolt sets for Rohn towers, and are they 
>> different
>> depending on the tower ? 25G, 45G and 55G?
>>
>> Cal Z
>> W4GMH in Crestview, FL.
>> _______________________________________________
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