Wheel stud knurl size??

anyone know what the knurl size is in the 68/72 drum hubs??

 

I think .472"

 

They’re different depending upon aluminum or iron drums. I can get you measurements in the morning; my old Dorman hardware catalog’s not here.
Patrick

 

Big block GS is Dorman 610-105; knurl is .558”.
Small block GS is 610-025, knurl is .564.
The biggest difference is the shoulder height; the big block shoulder is 21/32” vs. 3/8” for small block.
Dorman offered ‘overlength’ studs but nothing in either of those two knurls.
Patrick

 

thanks Patrick,..