Ba studs

[DustyParticipant @dusty]

I have the need for a number of 6BA studs of varying lengths. I have searched for it seems hours on tinternet for a source, without any luck apart from 1" length. I do not want to use studding (allthread). I cannot even buy material to make them without turning the blank stud first, which due to the number is not an option (well not if I want finish the project before i get to wear a wooden overcoat). Any ideas gents.

[DustyParticipant @dusty]

Where from

[Maurice Cox 1Participant @mauricecox1]

You could ask Stuart Turner where they source the studs used in their engine kits, although the new owners are very busy at the moment, sorting everything out.

[JasonBModerator @jasonb]

Or Ask Andrew if you can borrow his new repetition lathe

[JasonBModerator @jasonb]

Just looking at EKP I see they sell 7/64th steel rod so that saves having to machine it down to size.

J

[NJHParticipant @njh]

Dusty

I sympathise! I had need of some 8BA studs a while ago and had to resort to making them – I didn't have the right sized rod either but Idid have one of these. It worked well but then there is the problem of getting them all the same length…..and finishing the ends……I only needed about 20 but if you need lots…………

Regards

Norman

[Kevin BennettParticipant @kevinbennett25223]

Hi i found this on eBay 6BA Steel Threaded Bar – Rod Studding – 6 BA – 6" or 12" Length

Item number: 280879919196

ty Kevin

[Charlie,Participant @charlie18171]

Hi Dusty

GLR Distributors do BA studding, Find them in the last issue of MEW,

[JasonBModerator @jasonb]

Dusty did say that he DID NOT want to use studding but proper studs – rod threaded at each end.

J

[Phil PParticipant @philp]

A small Coventry die-head should be on your Christmas list.

Makes a much better job of studs than split dies ever could.

Phil

[Colin GParticipant @coling]

Try Mark at sales@ba-bolts.co.uk He will make small quantities, maybe he has the

raw material to sell?

Colin

[David Clark 13Participant @davidclark13]

Hi There

For studs.

Try Items mail order.

I don't have contact details but a Google search will probably find them.

regards David

[nigel jones 5Participant @nigeljones5]

joe sells them at maccmodels

[DustyParticipant @dusty]

Thanks Guys

Jason, I had completly missed EKP, looked everwhere else. Have ordered a few lengths will have some 'in the stores' for future use now.

The Forum comes to the rescue again.

[TerrydParticipant @terryd72465]

Nice one Jason,

I see that they sell studs as well – that's one to bookmark

Best regards

Terry

[JasonBModerator @jasonb]

I had assumed Dusty tried EKP as he said that he had found 1" long studs but just thought he may have missed the raw material.

As they make the fixings for the majority of the ME suppliers they are my first place to look.

I do try to make the studs as I go along which helps prevent that massive amount at the end of a project.

J

[Paul ClaphamParticipant @paulclapham12886]

Dusty try ba-bolts.co.uk these have a fair selection of bolts, you might be able to get bolts the correct size and then remove the heads and you only have to thread one end.

Regards Paul.

[AESParticipant @aes]

@Dusty,

Try **LINK**

Though this company is primarily model oriented (aircraft, helicopters, etc) they have a surprisingly large range of "other" stuff, inc BA bolts & machine screws in stainless & brass. Not sure about studding but worth a check. Based on my own experience as a satisfied customer, very reliable & efficient.

Usual disclaimers.

AES

 

Edited By AES on 25/10/2012 09:19:50

[doubletopParticipant @doubletop]

Try Mark at BA Bolts

sales@ba-bolts.co.uk

He appears to make to order "Just waiting for one of the items on your order, machine will be free later on today to make these small bolts" so just ask and see what he can do for you.

Pete

[DustyParticipant @dusty]

Many thanks to all of you that have contributed to this thread. I now have the raw material to produce my own, as much as I would like to purchase the studs, those who manufacture such would I am sure not be too keen on producing the small numbers I want and I would not want to pay for them if they did, they are after all in buisiness to earn a living and producing 50 or so studs of varying lengths is not economic. We are talking in tens of one size a dozen of another and so on. Some of you appear to be getting confused with studding and studs, Studding is threaded all the way along its length and is not suitable for my needs whilst studs have a threaded portion at each end and the centre is full dia. Once again thank you for all your help and suggestions.

[Anonymous]

Posted by JasonB on 23/10/2012 19:19:12:

Or Ask Andrew if you can borrow his new repetition lathe

Oeeeer, I don't think you can get Coventry die sets that small. The smallest I've seen is 10BA, for a 1/4" diehead. The Britan did come with adaptors for conventional split dies and taps. The adaptors are quite clever, they rotate freely once the thread depth is achieved, but when the spindle is reversed they lock up and back the die/tap out. I guess the main problem with threads this small is stripping of the thread during manufacture. That is probably why the Coventry die sets don't go that small.

Regards,

Andrew

[TerrydParticipant @terryd72465]

Hi All,

This thread (no pun intended) started off a thought process as to the advantage of studs vs studding. I understood that studs were used to allow different threads to be used, e.g. in a cast iron or aluminium casting a coarse thread would be used, while for the fixing nut a relatively fine thread would be used – e.g BSW at casting end and BSF for the clamping nut.

The theory, as I was led to believe, is that the coarse thread was less liable to be pulled out of the weaker or brittle material while the finer thread of the nut allowed a greater clamping force for a given torque.

Hence the use of studs in models with the same thread both ends has no significant advantage, not even an aesthetic one as they cannot be seen. If aesthetics is important on early historic models surely it is more important to use square nuts as would be originally used. Strength of the stud would not be a factor as there must be extra redundant threads below the fixing nuts.

Can anyone explain what other advantage there is that I may have missed?

Best Regards

Terry

Edited By Terryd on 27/10/2012 12:04:14

[JasonBModerator @jasonb]

One reason for using proper studs if that the end can be threaded to a set length so that when you screw it into the hole it will protrude by a known amount regardless of how many turns the tap had threading the hole. This helps ensure that when everything is assembled you end up with the right amount of stud above the nut, especially on parts with lots of studs that may come in & out several times.

Also having a plain centre section allows you to grip the stud without crushing the creasts of the thread.

The cost of studding can soon mount up, eg 8BA costs around £5.50 a foot but a similar length of rod cost say 50p

If the original engine had square nuts then I would make square ones to screw onto a proper stud, this is a pic of the fixings for a hit & miss all made including the ones with square heads on teh set screws, no hex sockets here.

J

[TerrydParticipant @terryd72465]

Thanks Jason,

Those are good enough reasons for me, Studs it is.

Best regards

Terry

[Sub MandrelParticipant @submandrel]

Copper plated plain welding rods are just the right size for 10BA studs and nice and soft so they don't ruin your dies. You can even gently run a 10BA die down a long (well lubricated) length of it under power without trouble.

Neil

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