Hole GAS (DIN standard)

Hi,
why holes gas are quoted with M symbol and the relative value diameter
in millimeter and not ex. GAS 1/4 as callout note ?

And also replacing the M with G, at the next rebuild returns the symbol
of metric thread ?

Exist a workaround ?

Alessandro

 

Explain GAS???

 

TOP ha scritto:

Hi TOP,
when I use 'Straight pipe tapped hole' as hole wizard type in the DIN
Standard.

Alessandro

 

THANKS.