Actualize data on "ISO Metric Profile" sheet of the Threads.XLS (Design Data)

[Maxim-CADman77]

The data on "ISO Metric Profile" sheet of the Threads.XLS (the one included in Inventor pack as "Design Data") definitely needs revisioning:

1. It's worth to have simplified "Custom Thread Designation" values (without a Pitch) for the entries that describe threads with a Coarse pitch:

"M2x0.4"
"M2.5x0.45"
"M3x0.5"
"M4x0.7"
"M5x0.8"
"M6x1"
"M8x1.25"
"M10x1.5"
"M12x1.75"
"M16x2"
"M20x2.5"
"M24x3"
"M30x3.5"
"M36x4"
"M42x4.5"
"M48x5"
"M56x5.5"
"M64x6"

2. Delete the mistaken entries like the two lines of "M56x6.5". (coarse pitch for nominal Diameter 56 is 5.5)