4x 3/8” x 3 1/4” Sae Exhaust Manifold Studs + [4] 3/8 Black Phosphate Self Locking Nuts.

4 - 3/8” x 3 1/4”manifold studs 

4 - 3/8”- 16 serrated flanged grade 5 self locking nuts

8 pcs total