On Wed, 5 Jan 2005 08:47:06 -0800 (PST), jrem wrote:

> those british threads are crazy.  The british pipe threads don't have any english standard or metric match.

That's because it was designed for a specific purpose - connecting surplus gun-barrels together to form pipes!  
It didn't need to connect to anything else, and I'm not sure if standard threads had even been established by 
then - nuts and bolts weren't made for sale, blacksmiths made their own.  And when standard threads did start 
appearing, there were many different ones (BA, BSF, BSC, Whitworth, Acme, UNF and UNC are the ones that are 
still around :-)

Incidentally, to this day, ferrous pipes here are known as "Iron Barrel".

Cheers,


Howard Winter
St.Albans, England


-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist