GM 12 Bolt Rear
Differential Cover
Stud Kit
Classic Series Gold Zinc Nuts

I haven't sold these in a while but decided to bring them back because they were a popular item at one time. As with any stud kit, they make gasket alignment easier during installation and prevent housing thread wear from removing/re-installing bolts. They also give a nice appearance once installed if you prefer the stud look. These are 1.5" overall length and a typical cover bolt is .75" under head so you will have a bit of stud protrusion through the nuts.
(Obviously the amount will vary depending on the cover & gasket thickness)

Note - These may not work with certain aftermarket aluminum differential covers. If you're using such a cover be sure to check the thickness before ordering.

Kit includes 12 1.5" studs and 12 matching gold zinc serrated flange nuts.