9/32 hex steel bar

Advert

New Replies

Report Bug

Help/FAQs

9/32 hex steel bar

This topic has 25 replies, 10 voices, and was last updated 7 September 2021 at 09:30 by malcolm conomy.

Viewing 25 posts - 1 through 25 (of 26 total)

1 2 →

Author

Posts
2 September 2021 at 05:47 #560799
malcolm conomy
Participant
@malcolmconomy47527
Hello from Australia,

I am trying to source 9/32 hex or 3ba hex bar, for a batch of small nuts I need to make. I need about 30 – 1 metre lengths or longer. Does anyone know of supplier in the UK who can supply.

Mal
Advert

2 September 2021 at 05:47 #28330
malcolm conomy
Participant
@malcolmconomy47527
2 September 2021 at 07:00 #560802
JasonB
Moderator
@jasonb
EKP do 0.275" for 3BA Hex or M-machine do 7mm hex which would which is probably the same and both only 0.002mm below the minimum 3BA hex size
2 September 2021 at 08:52 #560814
malcolm conomy
Participant
@malcolmconomy47527
Thanks Jason, I'm trying to reproduce a 9/32 hex nut 0.281". The 3ba standard 0.282" would be alright, but an undersized 0.275" is stretching it a little further than I would like. I had found the EKP product, but would prefer the bar to be on size "if possible".

Edited By malcolm conomy on 02/09/2021 08:54:32
2 September 2021 at 09:27 #560819
malcolm conomy
Participant
@malcolmconomy47527
I can get 7mm bar locally but not 9/32.
2 September 2021 at 10:12 #560826
Ian Parkin
Participant
@ianparkin39383
How much material do you need?

do i read that you need 30 metres of it

or enough to make 30 nuts?
2 September 2021 at 10:48 #560836
malcolm conomy
Participant
@malcolmconomy47527
more like 3000
2 September 2021 at 10:58 #560840
Anonymous
Posted by malcolm conomy on 02/09/2021 10:48:05:

more like 3000

I was going to say make your own 9/32" hex by milling from round but not practical for 30m.

I'd use 7mm hex – hope you've got a decent repetition, capstan or CNC lathe.

Andrew
2 September 2021 at 11:04 #560844
JasonB
Moderator
@jasonb
These people do custom nuts machined from round bar, might be worth getting a quote
2 September 2021 at 12:01 #560871
not done it yet
Participant
@notdoneityet
more like 3000

Metres, mm, or nuts?

Gwr-fasteners do 20 nuts for just over £3. I would expect 3000 would come at a much reduced rate?

Clearly(?) someone, somewhere, makes them! It might be worth checking the dimensions, mind – if you want exactly 0.281” across the flats….
2 September 2021 at 13:08 #560891
JasonB
Moderator
@jasonb
Posted by not done it yet on 02/09/2021 12:01:35:

more like 3000

Metres, mm, or nuts?

Gwr-fasteners do 20 nuts for just over £3. I would expect 3000 would come at a much reduced rate?

Clearly(?) someone, somewhere, makes them! It might be worth checking the dimensions, mind – if you want exactly 0.281” across the flats….

The original post wanted 30 one meter lengths so that would equate to 3000 nuts allowing for parting off and facing.

What do GWR do 20 of ? as we don't know what thread the OP wants his nuts to be, BA was only mentioned in regards to AF size.

"Someone makes them" again what are they as we don't know the thread or even if the 9/32" AF is a standard nut size or a scaled down dimension from a full size subject.
2 September 2021 at 14:25 #560911
Robert Butler
Participant
@robertbutler92161
OP based in Australia, specification and quantities perhaps confused after a night on the laaaager.

Robert Butler
2 September 2021 at 14:28 #560913
JasonB
Moderator
@jasonb
What was there to get confused about he wants 30m of 9/32" hex to make 3000 custom nuts.
3 September 2021 at 07:51 #561009
malcolm conomy
Participant
@malcolmconomy47527
If they could be bought off the shelf, I wouldn't be asking the question. Let me make it clearer, I make spare parts for Hercus lathes. These are a clone of the American South Bend lathe, much like your Boxford. The parts I make, have to be totally original in form. I use index cam auto lathes with specific collet sizes. To use 7mm would require a specific collet(which aren't cheap) or forcing the collet to over clamp past it's designed size, which is a practice i am not keen on.

30 lengths of 1 metre stock would make 3375 of these nuts, I would prefer to use 12' lengths but that would be awkward in terms of freight to Australia. The shortest bar I could feed into my machines would be about 3'.

The nuts are 3/16" long and have a 7/32 X 28 thread with the hex turned down for 1/16" of it's length on one end to the 9/32 diameter. A lot of the owners like to have their machines totally original and the space it operates in is small, hence the specific size.

I wasn't expecting to find this stock easily. The only place I have been able to find it so far is the USA, but at $50US a metre plus freight, it's not an option. In years gone by I would have had it custom milled here but no one is milling free machining steel hex that small here now.

Some of our model engineering suppliers have brought it in from the UK in the past, so I thought I'd see if anyone knew who made it.

Edited By malcolm conomy on 03/09/2021 07:59:48
3 September 2021 at 08:32 #561010
David Colwill
Participant
@davidcolwill19261
Hi,

I have asked a couple of my stockholders and they don't keep it.

West Midlands Bright Bar was mentioned as worth a try.

David.
3 September 2021 at 09:03 #561016
Michael Gilligan
Participant
@michaelgilligan61133
Posted by Robert Butler on 02/09/2021 14:25:25:

OP based in Australia, specification and quantities perhaps confused after a night on the laaaager.

Robert Butler

.

There may be laws against making that sort of remark.

MichaelG.
3 September 2021 at 10:35 #561030
malcolm conomy
Participant
@malcolmconomy47527
Thanks David, I just sent West Midlands an email, got my fingers crossed.

Mal.
3 September 2021 at 10:37 #561031
malcolm conomy
Participant
@malcolmconomy47527
Thanks Michael, I wasn't offended by RB's comment. Chasing down stuff like this would make anyone turn to drink. Mal
3 September 2021 at 23:02 #561142
Robert Butler
Participant
@robertbutler92161
It appears that until clarified subsequently, I wasn't the only one confused by quantity, 3,000 is a large number of nuts by any standard and 30 would fall in to what perhaps would be the expected quantity of nuts required by forum members. . A simple post – "I need to make 3,000 special 3ba nuts and require 30 off one metre lengths of 9/32" or 3ba hex" is succinct.

I apologise if I caused offence

Robert Butler
4 September 2021 at 00:06 #561147
Paul Lousick
Participant
@paullousick59116
The 9/32" [0.281"] hex nuts must have a tolerance, nothing is made to an exact design size. What is the minimum allowable tolerance ?

7mm = 0.275" which is only 0.007" less than required. The 7mm hex bar is also made to a tolerance. Can you check with the supplier if have any that has been made to the maximum tolerance and are slightly bigger ?

Paul.

Edited By Paul Lousick on 04/09/2021 00:07:12
4 September 2021 at 00:37 #561148
Robin Graham
Participant
@robingraham42208
Posted by malcolm conomy on 02/09/2021 05:47:13:

Hello from Australia,

I am trying to source 9/32 hex or 3ba hex bar, for a batch of small nuts I need to make. I need about 30 – 1 metre lengths or longer. Does anyone know of supplier in the UK who can supply.

Mal

Live Steam Models down the road from me (in the UK) list 9/32 EN1A hex at £1.15 per metre. I doubt that they would have 30 metres in stock as they are a small outfit, but presumably they have a supplier. Might be worth giving them a shout.

Robin.
4 September 2021 at 01:28 #561150
malcolm conomy
Participant
@malcolmconomy47527
Thanks Robin, I'll give them a try. Mal
4 September 2021 at 06:47 #561157
Michael Gilligan
Participant
@michaelgilligan61133
Posted by Robin Graham on 04/09/2021 00:37:33:

[…]

Live Steam Models down the road from me (in the UK) list 9/32 EN1A hex at £1.15 per metre.

.

That’s an excellent price list ^^^

thanks for the link, Robin … duly noted

MichaelG.
5 September 2021 at 00:57 #561292
Robin Graham
Participant
@robingraham42208
Not sure if you meant [(excellent price) list] or [excellent (price list)] Michael, but it's certainly an unusual price list (both ways) in that they base prices on what they paid when they bought it, rather than current value. That policy leads to anomalies such as 2.5" round steel bar being 13% cheaper than 2.25" per unit length. Worked well for buying brass when copper prices went through the roof!

Mal may well find that that the price/availability of 9/32" hex is based on a half metre length which has been sitting on the shelf for years, but worth a try.

Robin

Edited By Robin Graham on 05/09/2021 00:57:41
5 September 2021 at 06:20 #561296
Michael Gilligan
Participant
@michaelgilligan61133
Apologies for the inadvertent ambiguation, Robin

Concatenation [pricelist] or hyphenation [price-list] might possibly have helped, but … for the avoidance of doubt …let me say that I was specifically admiring it as an exercise in listing.

The prices do generally look attractive, but being unfamiliar with their products I would not presume to comment upon those.

MichaelG.
Author

Posts