Topic: Threads - 2BA or 5mm ? (Read 3492 times)

Geoff Cropper · « **on:** March 17, 2011, 09:38:45 pm »

Hi guys, I have an old brass ww2 type propeller threaded either 2BA or 5mm. How do I find what thread it is, as I'm told that 2BA and 5mm are almost identical ? George Sitek doesn't do BA threads any more. Does anyone still make BA threaded prop-shafts? I'll visit the hardware shop tomorrow for a 5mm bolt. Sorry, should have thought of that before, another senior moment eh. Regards Geoff.

brianB6 · « **Reply #1 on:** March 18, 2011, 06:31:31 am »

If its very old it is almost certainly 2BA
You might have to buy a 2BA die to thread the shaft and don't forget some cutting oil!

sarge257 · « **Reply #2 on:** March 18, 2011, 04:47:51 pm »

Hi Geoff. I recently got some 2Ba prop shafts made from the firm below.
Model Box
P.O. Box 3651
Bracknell
Berkshire
RG12 7UP
07786 485568

Geoff Cropper · « **Reply #3 on:** March 18, 2011, 05:22:51 pm »

Thanks Sarge, I'll check it out soonest, cheers, Geoff.

Tutssy · « **Reply #4 on:** March 18, 2011, 05:51:47 pm »

2BA or not 2BA?

john s 2 · « **Reply #5 on:** March 18, 2011, 08:31:42 pm »

That is the question.

News:

Author Topic: Threads - 2BA or 5mm ? (Read 3492 times)

Geoff Cropper

Threads - 2BA or 5mm ?

brianB6

Re: Threads - 2BA or 5mm ?

sarge257

Re: Threads - 2BA or 5mm ?

Geoff Cropper

Re: Threads - 2BA or 5mm ?

Tutssy

Re: Threads - 2BA or 5mm ?

john s 2

Re: Threads - 2BA or 5mm ?