TKG,how does the spinner attach to the center drilled 5/16" bolt.I've seen these bolts before that are tapped 10-32 in the end of the hex but I've never actually seen one in use.Anybody got a picture of what this setup looks like?Do you tighten down the bolt first and then attach the spinner nut to the hex head with a 10-32 stud or something?A picture truly is worth a thouisand words at times like this

.
Dr.Evil,will try the NAPA down the road tomorrow to see what sizes of studs that they carry.Thanks!