R4 vs M22 x 1 female: specs compared
Updated 05 September 2026.
113.03 mm
R4 wins on major diameter
On major diameter, R4 leads: 113.03 mm versus 22 mm.
| Spec | R4 | M22 x 1 female |
|---|---|---|
| Designation | R4 | M22 x 1 female |
| Major diameter | 113.03 mm | 22.0 mm |
| Threads per inch / pitch | 11 | 1 mm pitch |
| Thread form | tapered, 55 degree | fine parallel |
| Seals on | on the thread flanks with PTFE tape or paste | washer inside the aerator housing |
Questions and answers
Which has the higher major diameter, R4 or M22 x 1 female?
On major diameter, R4 leads: 113.03 mm versus 22 mm.
How do R4 and M22 x 1 female compare?
On major diameter, R4 leads: 113.03 mm versus 22 mm.