ARP 100-1404 Sb Ford 3/8""X1.67 12Pt Hd " , Pack of 16 Description: SB Ford 3/8 x 1.670" 12pt header stud kit Pkg: kit Pkg Type: skin Material_1: 8740 chrome moly Finish_1: black oxide Material_2: N/A Finish_2: N/A Origin: USA Category: Cylinder Head Product Line: Header Kit Type: Stud