R1/16 vs G1/2: specs compared
Updated 05 September 2026.
20.955 mm
G1/2 wins on major diameter
On major diameter, G1/2 leads: 20.955 mm versus 7.723 mm.
| Spec | R1/16 | G1/2 |
|---|---|---|
| Designation | R1/16 | G1/2 |
| Major diameter | 7.723 mm | 20.955 mm |
| Threads per inch / pitch | 28 | 14 |
| Thread form | tapered, 55 degree | parallel, 55 degree |
| Seals on | on the thread flanks with PTFE tape or paste | flat washer |
Questions and answers
Which has the higher major diameter, R1/16 or G1/2?
On major diameter, G1/2 leads: 20.955 mm versus 7.723 mm.
How do R1/16 and G1/2 compare?
On major diameter, G1/2 leads: 20.955 mm versus 7.723 mm.