標準Yパイプ（ジョー）の先端を加工した場合のねじ締めスペースです。
| H = 2 | H = 5 | H = 7 | ||||||
|---|---|---|---|---|---|---|---|---|
| 使用ねじ | T1 | W1 | 使用ねじ | T1 | W1 | 使用ねじ | T1 | W1 |
| 25A | 9 | 11 | 25A | 9 | 13 | 25A | 9 | 15 |
| 25B1 | 9 | 13 | 25B1 | 9 | 15 | 25B1 | 9 | 17 |
| 25B2 25C |
9 | 13 | 25B2 25C |
9 | 15 | 25B2 25C |
9 | 16 |
| 30A | 9 | 13 | 30A | 9 | 15 | 30A | 9 | 16 |
| 30B1 | 9 | 14 | 30B1 | 9 | 16 | 30B1 | 9 | 18 |
| 30B2 | 9 | 13 | 30B2 | 9 | 15 | 30B2 | 9 | 17 |
| 30C | 11 | 12 | 30C | 11 | 17 | 30C | 11 | 20 |
| 35A | 9 | 13 | 35A | 9 | 15 | 35A | 9 | 17 |
| 35B1 | 11 | 15 | 35B1 | 11 | 17 | 35B1 | 11 | 19 |
| 35B2 | 11 | 15 | 35B2 | 11 | 18 | 35B1 | 11 | 19 |
| 35C | 11 | 16 | 35C | 11 | 17 | 35C | 11 | 19 |
| 40A | 11 | 15 | 40A | 11 | 17 | 40A | 11 | 18 |
| 40B1 | 11 | 16 | 40B1 | 11 | 18 | 40B1 | 11 | 20 |
| 40B2 | 11 | 17 | 40B2 | 11 | 19 | 40B2 | 11 | 20 |
| 40C | 12 | 17 | 40C | 12 | 19 | 40C | 12 | 21 |
| 50A | 12 | 18 | 50A | 12 | 19 | 50A | 12 | 21 |
| 50B1 | 13 | 18 | 50B1 | 13 | 20 | 50B1 | 13 | 23 |
| 50B2 | 13 | 21 | 50B2 | 13 | 22 | 50C2 | 13 | 24 |
| 50C | 15 | 23 | 50C | 15 | 23 | 50C | 15 | 27 |
| 60A | 13 | 20 | 60A | 13 | 22 | 60A | 13 | 24 |
| 60B1 | 15 | 23 | 60B1 | 15 | 24 | 60B1 | 15 | 27 |
| 60B2 | 15 | 23 | 60B2 | 15 | 25 | 60B1 | 15 | 27 |
27A |
9 | 11 | 27A |
9 | 11 | 27A |
9 | 12 |
| 27B1 |
9 | 12 | 27B1 |
9 | 12 | 27B1 |
9 | 13 |
| 31A |
9 | 12 | 31A |
9 | 12 | 31A |
9 | 13 |
| 31B1 |
9 | 13 | 31B1 |
9 | 13 | 31B1 |
9 | 14 |
| 35A |
11 | 13 | 35A |
11 | 13 | 35A |
11 | 15 |
| 35B1 |
11 | 14 | 35B1 |
11 | 14 | 35B1 |
11 | 16 |
