Aluminum float bowl nut for Dellorto VHB 29 and 30, uses bowl nut gasket 4057. This carburetor float bowl nut fits VHB carbs as used on Ambassador, Eldorado, 1969-1971 V7 Special, 850GT, V7 Sport, 750S, S3, 850T, 850T3, also Convert, V1000 G5, SP1000, and CX100 with VHB carbs. 14mm across flats of hex section. Approximately 12.9 mm internal thread diameter. Thread pitch 1.00. Made in USA.