Quote:
Originally Posted by pchild
I just wanted to thank you for posting this, I checked on the fittings we use and they do have internal hex. We've used pneumatics for years and somehow no one on our team has caught this! We've been tightening fittings onto our solenoids incorrectly for years!  |
Not all fittings have these, but they're so convenient to have! I'd suggest always buying Norgren fittings if possible, they're the only brand that consistently broaches the inside. IIRC, they have the original patent on doing so.