ねじ下穴径表:管用平行ねじ用(Rp,PS)
単位(mm) | |||
呼び | D1(内径) | ドリル径(参考) | |
---|---|---|---|
Max. | Min. | ||
Rp 1/16-28 | 6.632 | 6.490 | 6.5 |
Rp 1/8-28 | 8.637 | 8.495 | 8.5 |
Rp 1/4-19 | 11.549 | 11.341 | 11.4 |
Rp 3/8-19 | 15.054 | 14.846 | 14.9 |
Rp 1/2-14 | 18.773 | 18.489 | 18.6 |
Rp 3/4-14 | 24.259 | 23.975 | 24.0 |
Rp 1-11 | 30.472 | 30.110 | 30.2 |
Rp 1 1/4-11 | 39.133 | 38.771 | 38.8 |
Rp 1 1/2-11 | 45.026 | 44.664 | 44.7 |
Rp 2-11 | 56.837 | 56.475 | 56.5 |