On Thu, 26 Apr 2018 09:33:32 +0200, Emanuel Berg
wrote:

John B. wrote:

Does anyone have any actual data?

What does it say on the box? Should have a pin
length of 6.6-6.8 mm (1/4-9/32")...

??? As I said, Shimano HG 53 and Shimano HG 93 chains. Both described
by Shimano as 9 speed chains.
--
Cheers,

John B.