TIG thread size of ceramic nozzle

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HiI am new to the forum. I need some help.What thread sizes (diameter and pitch) of ceramic nozzle toArc torch Weldcraft WP-17,18,19ThanksJura Attached Images
Reply:Those are air cooled cups..But I believe the thread on those are the same as a wp-20 watercooled torch..I just measured mine..The thread is 3/8-24.....zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Thanks for the reply. But I think that ceramic nozzle for  torch WP-17,18,19 have another thread sizes (diameter - ⅜, pitch-16)But  this not exactly. Firm Weldcraft not answer. Attached Images
Reply:I have a WP-18 collet and a thread gauge, its 16 threads per inch, 3.8 inch diameter.Don't know what you're doing, but I'd go with that big ole gas lens pictured there, with a #12 nozzle (3/4").