RBS has found this to be the most versatile blower stud on the market for roots blowers. This stud will stand up to the demands of todays blown street engines or blown alcohol applications. It is made from a 2024 alum. that has been anodized for wear resistance and has an external hex for ease of installation. The stud has 7/16-14 threads on the manifold side and standard 7/16-20 for the manifold nuts. Studs fit most roots blowers but will not work with SSI, Kobelco, or screw blowers. Stud length is 3.00" not including hex top. Studs are sold individual.