My (really bad) drawing was exaggerated for illustration. And I was also going off the pic from atmistique. From what I can see from your pics, there is a tiny bevel on the SS, and not on the brass, yes?
And the SS pin is a larger diameter than the brass, just to confirm.
Brass pin where the O rings sit is 2.31mm. Brass Head 3.75mm
SS pin where the O rings sit is 2.46mm. SS Head 4.2mm
Yes the SS pin head has a very small bevel on the under outside edge, there is no bevel on the brass head but I dont know which version of the brass pin I have.
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