Threaded Reducer Female-Male. 3/8" x 1/2", 1/2" x 3/4", 3/4" x 1", 1.25" x 1", 1.25" x 1.5", 1.5" x 2".
Common Thread Size Name For 3/8": 10mmActual Thread Size For 3/8": 16.1mmCommon Thread Size Name For 1/2": 15mmActual Thread Size For 1/2": 21.6mmCommon Thread Size Name For 3/4": 20/22mmActual Thread Size For 3/4": 25.25mmCommon Thread Size Name For 1": 25mmActual Thread Size For 1": 32.9mmCommon Thread Size Name For 1.25": 32mmActual Thread Size For 1.25": 41.1mmCommon Thread Size Name For 1.5": 40mmActual Thread Size For 1.5": 47.1mmCommon Thread Size Name For 2": 50mmActual Thread Size For 2": 59.1mm