The thread will be 7/16-20, but there are several different lengths and knurl sizes available. It would be best to drive out a good one and compare it with a local parts store's bench stock. I use a ball joint press and a 3/4" drive impact wrench to install wheel studs. Don't try to pull them in with a lug nut and a stack of washers- - - -you'll stretch the threaded part of the stud.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!