Threads are a 7/16-14 on the nut side of the stud and on the manifold side a 7/16-14. The unique feature of these studs are that they have an internal broached hex that make installation a snap with an allen wrench.
Hard anodizing helps prevent galling and the alum. provides light weight while providing a safety factor in the event of a supercharger backfire saving your supercharger or manifold.
Stud is 2.160" overall, .750" coarse thread, .750" shoulder, .660" coarse thread.
This kit fits all PSI screw superchargers.
PICTURE SHOWS SIX POINT NUTS BUT TWELVE POINT NUTS ARE INCLUDED WITH STUDS.