ยูเนี่ยนเกลียวในสแตนเลส
(Stainless Female Thread Union)
| Code | Size mm. |
| G8542gB-20.1/2 | D20-1/2 |
| G8542gB-25.3/4 | D25-3/4 |
| G8542gB-32.1 | D32-1 |
| G8542gB-40.1-1/4 | D40-1-1/4 |
| G8542gB-50.1-1/2 | D50-1-1/2 |
| G8542gB-63.2 | D63-2 |