MGB, MGB-GT HS4 SU CARBURETTOR FLOAT CHAMBER & DASH POT SCREWS KIT x 12 1962-72
MGB, MGB-GT ; YEARS 1962-1972. They are designed to fit the twinHS4 (1 ½" SU) carburettors. The second image shows an original screw compared to a new screw from this kit.