Connectors pitch

What is the pitch for either of the stepper connectors?
The big ones and the small ones

Imported from wikidot

2.54mm and 3.5mm

3.5? Is these the exact size?

I’ve seen 3.96mm (156mil) connectors available, but not 3.5mm

http://www.digikey.com/product-detail/en/amphenol-fci/20020110-C021A01LF/20020110-C021A01LF-ND/4242073