[jzeiler]

Search back a few months as there was a guy that worked out a feed through solution but your choice of the Delron/ Viton studs looks very promising.

 

[jzeiler]

Any way to shave down the step that holds the O-ring to make it thinner?

 

[jzeiler]

Yup that is the one, I couldn't find it again and did not remember the outcome.