Special 12-28 screw used to fasten the air horn to the bowl on Carter WD-0 carburetors used on 1938 – 1940 Cadillac V-16. Also for use on other makes and models using a Carter WD-0 carburetor.
Carter part number 101-97.
Cadillac part number 1423171, group 12.0988.
8 Used per car.
Material: 303 Stainless
Finish: Natural
Thread: 12-28
OAL: .937
Length under head: .750
Head DIA: .343