Damn Metric? Come on the SI system is the only good thing (apart from Michelin tires) to come out of France & you have to rag over it!
-What the heck does that mean? Is it bigger or smaller that a 22/56ths?
And what’s an inch anyway, where is it derived from? The distance between a the joint of the King’s finger on his right hand that’s where.
At least the metric system is derived from a scientific set of constants. It’s the sort of improvement we got when the modern world decided decimalisation in currency was a good idea. We have 10 fingers so we work in base 10. 12 inches to a foot, please! 14 pounds in a stone, no thanks!
Generally speaking std metric threads have a common pitch so just measuring them for diameter is a good guess & you don’t have to convert thous of an inch into some silly fraction.
Cue hate mail from here. . . :p