Stud is made from a 7075 alum. that has been anodized for wear resistance and has relief machined in the shank of the stud to allow the stud to break before damaging the PSI screw supercharger case. The stud has 7/16-14 threads on the manifold side and standard 7/16-20 for the manifold nuts.
Studs fit most SSI, Kobelco, Whipple or PSI screw blowers but will not fit Mooneyham, Kuhl, Littlefield, BDS or Blower Shop superchargers. Stud length is 2.25" not including the top. RBS also can supply 7/16 AN washer #420-0007, and 7/16-20 12 pt. nut steel #450-0017TP.
Note: This is a used item. This item might have been taken in on a trade. RBS may have inspected this item and deemed re-usable. There is no warranty expressed or implied with this item.