3/4"-11.5NH vs M18 x 1 male: specs compared
Updated 05 September 2026.
26.99 mm
3/4"-11.5NH wins on major diameter
On major diameter, 3/4"-11.5NH leads: 26.99 mm versus 18 mm.
| Spec | 3/4"-11.5NH | M18 x 1 male |
|---|---|---|
| Designation | 3/4"-11.5NH | M18 x 1 male |
| Major diameter | 26.99 mm | 18.0 mm |
| Threads per inch / pitch | 11.5 | 1 mm pitch |
| Thread form | straight (parallel), 60 degree | fine parallel |
| Seals on | flat washer or O-ring in the female coupling | washer inside the aerator housing |
Questions and answers
Which has the higher major diameter, 3/4"-11.5NH or M18 x 1 male?
On major diameter, 3/4"-11.5NH leads: 26.99 mm versus 18 mm.
How do 3/4"-11.5NH and M18 x 1 male compare?
On major diameter, 3/4"-11.5NH leads: 26.99 mm versus 18 mm.