No no, there is no thread anywhere. Check the first diagram I posted, it will make more sense. That one I showed with the threads was just an up close version of what the barb looks like.
And yeah mike, I probably am going to just slip the hose on it and clamp it good. Its < 50 psi fuel pressure with this regulator, and will not need to last too long. It will be all -6 or larger when needed.
Thanks.
–mark