[modeleng] Re: 12ba Screws

BA thread and head sizes are at:

http://www.alanstepney.info/page77.html

They are the "old" Imperial sizes but due to the change of material to 
metric sizes, many if not all manufacturers have changed to the closest 
metric size hexagon.
alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

www.alanstepney.info
Model Engineering, Steam Engine, and Railway technical pages.



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