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 Post subject: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Sun 02, 2022 2:15 am 
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Someone here was working on some repro AK thumb nuts and I can't remember who. The last time he posted on it he wrote the form tool he had made wasn't right and he was going to have another one made. I was wondering what if any progress had been made.

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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Sun 02, 2022 3:31 am 
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I assume you mean the big ones, and not the ones for the posts?

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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Sun 02, 2022 3:35 am 
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These...


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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Sun 02, 2022 4:27 am 
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how many you need? I have some originals i might trade


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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Sun 02, 2022 5:45 pm 
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That was me, right. There were 'interruptions' in the plans for getting the form tool re-done. This is currently a back-burner project, sorry.


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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Sun 02, 2022 8:13 pm 
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Completely understandable Jim given whats going on. I was just curious where you were with the project.

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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Sun 02, 2022 9:24 pm 
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Was thinking about this today, does not seem hard to do if you have a metal lathe, tap, and the knurl tool.Now if you had a CNC lathe it would be easy.

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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Mon 03, 2022 1:10 am 
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All of the above - which includes the special convex knurling tool. Trouble is the form of the thumbnut is quite particular and AK did those with a form tool,
which the correct, and fastest way. Basically I'll need to get a quote for the form tool, which involves sending the vendor a .dxf file for them to do the wire
EDM job.


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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Mon 03, 2022 1:34 am 
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Yes, tooling is everything, here is a form tool.
https://www.youtube.com/watch?v=xKHZ_IZeoUA

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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Mon 03, 2022 2:02 am 
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Is there any major difference (other than the con--- knurling) between the AK nuts and the brass knurled thumbnuts sold by the H Paulin hardware company? MOst hardware stores including Home Depot sell Paulin products.


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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Mon 03, 2022 3:13 am 
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As I recall, any 8-32 thumb nut will fit, but nothing currently available has anything close to the correct knurling.


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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Mon 03, 2022 3:22 am 
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I have also seen those thumb nuts on Chelsea radios as well, the only difference is they were nickel plated, and the knurl is a little thinner.

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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Wed 05, 2022 2:16 am 
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I've got these, these are new, obtained them a few years ago, they are a metric thread, close to a 8/32 pitch, their quite large....


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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Wed 05, 2022 7:52 am 
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ballroad wrote:
I've got these, these are new, obtained them a few years ago, they are a metric thread, close to a 8/32 pitch, their quite large....


Not even close to what Dan is looking for.

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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Wed 05, 2022 7:21 pm 
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http://brassbindingposts.com/

Inquire, may have the straight knurl?

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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Fri 14, 2022 9:44 pm 
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atwaterkent1 wrote:
Someone here was working on some repro AK thumb nuts and I can't remember who. The last time he posted on it he wrote the form tool he had made wasn't right and he was going to have another one made. I was wondering what if any progress had been made.


Dan, aren't these the same nuts that were used on AK20 big box sets?

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 Post subject: Re: Atwater Kent Repro Thumb Nuts
PostPosted: Jan Fri 14, 2022 11:21 pm 
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Location: Boston, Massachusetts
yes, I sent Dan a handful.

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