Standard cross-reference
Which numbers describe the same part, and where they differ. 40 pairs, 35 compared value by value.
8 values differ →DIN 938 vs DIN 939Double End Stud — Metal End 1.25d
Differences on this page come from the TaurusFix confirmed dimension library, compared value by value and strictly against the standards themselves — not from a third-party equivalence chart. We produce to whichever standard your drawing calls out; a correspondence here is a dimensional fact, not a substitution instruction.