02 TJ Wheel stud tread size.
 

hey guys I feel so stupid for even having to ask this but can someone point me in the right direction for wheel studs?
the previous own put some nice rims on but the rear studs are very much to short as well as two of them on one wheel are very how ya goin, so I need to chase down 10 new extended wheel studs but I can't get a clear answer on sizing... usually i've got the imperial system down pat but its screwing with my head a little this time.

I believe the imperial thread size is 1/2-20 thread, which I believe is M14-2 but everywhere in Aus I look for extended studs its always different sizing... any help?
btw the rear is a Dana 44 if its of any use.
thanks guys

It's 1/2" UNF, which is 20 TPI.

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