Stud is made from a special aerospace alum. and has an internal hex for ease of installation. This stud is made from a material that is stronger than 7075 T-6 alum. The stud has 7/16 -14 or 1/2-13 threads on the manifold side and standard 7/16-20 for the manifold nuts.
Studs are 3.125" long overall which are perfect for 14.3 blower restraint applications. Coarse thread measures .825", shoulder .975", fine thread 1.025" and lead in quick start top .300".
Studs have been left natural finish as NHRA no longer wants black anodized finish so picking up off the track is made easier.
Racer can choose manifold stud size from drop down menu.