Size of small thread pitch nuts

[Brian WoodParticipant @brianwood45127]

[Brian WoodParticipant @brianwood45127]

Hello all,

A rather odd question I know, I am doing some research and I am missing information that seems elusive.

Can anyone tell me please what the nut height is in the smaller BA sizes, from say 6BA down; is there a table somewhere which I can refer to?

Thank you for head scratching in advance.

Brian

[Martin WParticipant @martinw]

Brian

I found this document which gives details of BA screws, threads, nuts etc. Pdf doc page 9 or document page 325 looks as if it has the info your require at least to 8BA for lock nuts (thin section/thickness) and through to 12 BA for full nuts (standard section/thickness).

On the last page there is a table with the following information. For BA sizes 0,1 & 2 = 0.9 diameter, 3BA and below 0.95 diameter.

Cheers

Martin

Edited By Martin W on 25/02/2014 09:38:34

Edited By Martin W on 25/02/2014 09:43:12

Edited By Martin W on 25/02/2014 09:50:41

[SaxalbyParticipant @saxalby]

Hi Brian,

Maybe this will help.

http://www.ba-bolts.co.uk/pdfs/BS%2057-1951%20-%20BA%20Screws%20&%20Nuts%20etc.pdf

Barry

Martin beat me to it

Edited By Saxalby on 25/02/2014 09:47:07

[Brian WoodParticipant @brianwood45127]

Hello Martin and Barry,

Thank you both for your trouble, it was just the information I was looking for. To trawl for it in BSI requires that you know which document number you are looking for, and having found it, pay £90 + to obtain a copy.

Thank you again, I greatly appreciate your help

Kind regards

Brian.

[Keith LongParticipant @keithlong89920]

Brian

Info also in Model Engineers Handbook, by Tubal Cain, down to 10 BA, also some sizes given down to 16 BA, and all at much less cost than BSI are asking.

Keith

[Brian WoodParticipant @brianwood45127]

Hello Keith,

My first port of call, but he didn't delve into the height of nuts, other things yes. Thanks though for the suggestion.

Brian

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