[TowerTalk] Ham IV part identificaiton

[Al Kozakiewicz]

12-24 is not that unusual, though unless space was at a premium I would just use 1/4" fasteners in their place. My local hardware stores stock that size, though I'm not sure about SS. McMaster Carr has SS hex heads in 3/4" for 25@$10.

Al
AB2ZY

-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Tom Hellem
Sent: Tuesday, February 9, 2021 1:03 PM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] Ham IV part identificaiton

Those bolts do seem to be a bit hard to find.
According to Fastenal's website, they have them in stainless socket head cap screws for around $2.50 apiece. And they say there is no inflation.
I wonder if there is enough material present to drill them out and tap them for 1/4", you can get this size bolt anywhere and cheaply.

Tom
K0SN

On Tue, Feb 9, 2021 at 10:37 AM kj6y--- via TowerTalk < towertalk at contesting.com> wrote:

> I tried all over the internet to find those screws. I did get some 
> from Hygain/MFJ.  I had a brand new Ham IV on an MA-40 mounted on top 
> and the screws holding the top and bottom pieces together came loose 
> and the antenna fell off.  Screws were not put on with Locktite.  Sent 
> back to Hygain for replacement.  They replaced the top half and 
> installed new screws.  Again no Locktite. I removed and reinstalled 
> the screws with Locktite.  Hopefully this will keep it from happening again.  All the
> rotors I refurbish I use Locktite on the screws.   Skip Bolnick,
> KJ6YCommunications Service Cowww.kj6y.com818-522-5421  In a message 
> dated
> 2/9/2021 8:19:30 AM Pacific Standard Time, marvs at att.net writes:
> Does anyone know what size bolt is used to hold the upper bell housing 
> to the lower housing in a Ham IV?  Marv
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