Stahlbus brake bleed valve - right front for 22 RS

[Grumpy Goat]

I have to disagree with you here, but it may simply be semantics: my contention is that the same item made of different materials should have a strength differential, one to the other, which may or may not require different torque values.  You only have to consider bolt grades available from say McMaster. 

Agree or disagee it doesn't matter. If you read again what I said you'd see I put in the bit in square brackets to qualify what I said, i.e. "[discernible to the wrist]". While there may be differences in material strength, to the wrist at that size of bleeder there is no difference; they will all twist off easily. Any difference are relegated to forum discussions ...