10-48 UNS 2A tap

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peter purpose

Well-known member
Joined
Jun 3, 2004
Messages
2,082
Location
London
Gentlemen,
I've searched high and low for a 10-48 UNS 2A tap, yet find nothing but charts.
Do any of you know of a secret machine tool supplier that could sell me one or two?

Any and all help welcome.

Cheers
peter
 
actually i found some at Mcmaster-carr, but I don't know if they ship to the UK

Chamfer Each
Taper 2595A745 $20.20
Plug 2595A746 20.20
Bottoming 2595A747 20.20
 
Peter,

What is that bad boy for?

I could not find any reference in Machinery's Handbook for that thread.
My copy (twentieth ed) only references UNC @ 24 tpi and UNF @ 32 tpi. Both are spec'd as 2A class fit.

Perhaps this is a custom threaded part. Or a specialty for one industry or another. Lots of weirdness once you cross the custom threshold! You may need to find the original supplier of the hardware or have a machine shop make a custom tap or die for you. Custom tools = $$.

Keef,

I have both tap and die for 5/8-27 that came from the local machine supply house. I don't think they were terribly expensive at the time. I seem to remember around $50 for both. I think the place is even on the web, I think "Machine Supply Specialty" or specialties.
 
Svart... :thumb: :thumb: kinwellahnsum

Irv..... <<What is that bad boy for? >>

It's for an ultra miniature toggle switch, to lose the front nut.

Grassy arse boys.

peter
 
Firstly:
sophia.jpg

Phwoooargh!

Secondly:
Irv: -Thanks, -Top work!

Thirdly:
Peter "Lose the nut"...

Nuff said.
 
http://www.groupdiy.com/index.php?topic=3076&highlight=microphone+tap

For Keith's post
 
Are you sure it isn't a Wintworth thread?

Seroiusly, weld that hole shut, drill and tap a 10-24.

Want something else thats impossible to find?

Look for a die to re-thread a 1966 Bucik Special left front spindle.
$10,000 to the first guy to find it.

It's been thirty years and I'm still lookin.
 
[quote author="CJ"]Are you sure it isn't a Wintworth thread?

Seroiusly, weld that hole shut, drill and tap a 10-24.
[/quote]


Is you tinkin Whitworth?.... No idea.
I didn't pay attention in metalwork class.

I don't have a hole to weld shut. I have a switch with a 10-48 thread and wanted to screw it flush mount into a panel.
I might just try and tap it in with the switch and squirt some loctite in there.

peter
 
[quote author="peter purpose"]I might just try and tap it in with the switch and squirt some loctite in there.[/quote]
When I saw that picture of Sophia, I briefly considered tapping it in with my â$$ and doing something very similar... but I wasn;t thinking of loctite, I can tell ya... :shock:

You got a spare switch or two?

Some cutting lubricant and a couple of dremeled-in slots into the switch threads on the neck will probably work, if the switch has a fairly hard thread, and you're going into aluminium. ("I" stressed for the English-impaired).

Then wash it out to clean the lubricant, and your suggested loctite should be just dandy. -Do you have a piece of scrap to test the process out on?

Keef
 
I used to work with such switches, those threaded collars are not very strong once deformed in any way.

Good luck though!
 
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