Female aerator thread (M24 x 1 / 55/64"-27) (M24 x 1 female / 55/64-27)
Where M24 x 1 female / 55/64-27 is used, its real dimensions, and how to connect it to other standards.
M24 x 1 female / 55/64-27Thread standard
DesignationM24 x 1 female / 55/64-27
Major diameter24.0 mm
Threads per inch / pitch27
Thread formfine parallel
Seals onwasher inside the aerator housing
Used on: The internal thread inside many tap spouts.
The internal counterpart to the male aerator thread. Tap connectors are sold in kits covering both M22 male and M24 female because taps vary.
Quick-connect click fittings from Hozelock, Gardena and Karcher are proprietary and do not interchange. They all sit on top of a standard thread underneath, so the reliable way to move between brands is to adapt at the threaded tap or hose-end fitting, then use each brand's own connector above it.
Connect this thread
Connect Female aerator thread (M24 x 1 / 55/64"-27) to Male aerator thread (M22 x 1 / 15/16"-27)needs an adapterMale aerator thread (M22 x 1 / 15/16"-27)related standard (M22 x 1 male / 15/16-27)Male aerator thread (M18 x 1)related standard (M18 x 1 male)Female aerator thread (M22 x 1)related standard (M22 x 1 female)
Sources: ISO 228-1 (G / BSPP parallel pipe threads) · Neoperl faucet aerator thread size reference