Making BA studs

[SaxalbyParticipant @saxalby]

I need to make a quantity of 4 and 6 BA studs. Does anyone know of a supplier that stocks steel and or brass in 7/64" and 9/64" sizes suitable for studs. To save reducing oversize rod.

Regards Saxalby

[SaxalbyParticipant @saxalby]

[SteamgeekParticipant @steamgeek]

Coventry Grinders stock silver steel in 7/64 and 9/64

[Chris TriceParticipant @christrice43267]

Unless you're wedded to the idea of making them or they're in some way unusual, EKP Supplies do lots of B.A. size product.

[JuddyParticipant @juddy]

they are available here: **LINK**

[not done it yetParticipant @notdoneityet]

It will likely need to be ordered, from a wholesale outlet, by your local supplier. My supplier stocks very few Imperial sizes of rod and likely even fewer Imperial threaded rods, but they can source the odd bits I occasionally need.

[SaxalbyParticipant @saxalby]

I wanted to make my own as those I could find ready made were either to long or short. I assume they are able to source material in the correct size.

[SaxalbyParticipant @saxalby]

I wanted to make my own as those I could find ready made were either to long or short. I assume they are able to source material in the correct size.

[SaxalbyParticipant @saxalby]

Thanks Juddy for the link. They apparently can make to size. So I will see what they charge.

[JasonBModerator @jasonb]

I get my 4BA stock from EKP that Chris mentions, its actually 3.5mm seldom use 6BA but they also do 7/64th. That way you can have a proper unthreaded middle section rather than the get out of using studding.

 

Edited By JasonB on 30/01/2018 15:38:41

[Tim StevensParticipant @timstevens64731]

There is a view that a stud with a solid middle section is both heavier and weaker than one made from studding. Heavier obviously, and weaker in regard to fatigue failure as the studding is, in effect, one long stress raiser, and the load is not concentrated anywhere. With a 'proper' stud the bits of thread inside the female threads really are stress raisers. But it all depends on the purpose of the stud, of course. Many model studs do not have to cope with vibration.

Another thought – BA threads are not in any sense the 'right' thing to use as a scale version of a full sized part. So, if what you need is an approximation to a scaled thread, the range of metric threads currently around would be no less 'wrong' and quite a lot cheaper and easier to find, and to find taps and dies for, nuts, etc.

BA threads are certainly regarded as 'traditional' for model making, but as I say they do not match the 'to scale' need, and the only reason for using them for models in the good old days, I suggest, was the lack of any off-the-shelf alternatives.

Discuss …

Cheers, Tim

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