
■ Unit : mm Unit : mm
Minor diameter of internal threads (D ) Bored hole size Minor diameter of internal threads (D ) Bored hole size
1 1
| Size ( ref.) | Size | ( ref.) | ||||
| 0.77 | 6.33 | 18.1 | 36.6 | |||
| 0.81 | 6.56 | 18.6 | 35.1 | |||
| 0.87 | 6.85 | 19.09 | 36.1 | |||
| 0.91 | 7.09 | 19.6 | 37.1 | |||
| 0.97 | 7.33 | 20.1 | 37.6 | |||
| 1.01 | 7.56 | 20.6 | 37.1 | |||
| 1.13 | 7.85 | 21.09 | 38.1 | |||
| 1.21 | 8.09 | 21.1 | 38.6 | |||
| 1.30 | 8.33 | 22.1 | 37.6 | |||
| 1.41 | 8.60 | 22.6 | 38.1 | |||
| 1.40 | 8.85 | 23.09 | 39.1 | |||
| 1.51 | 9.09 | 23.1 | 40.1 | |||
| 1.50 | 9.33 | 23.6 | 40.6 | |||
| 1.61 | 9.56 | 24.09 | 40.6 | |||
| 1.65 | 9.60 | 24.6 | 41.1 | |||
| 1.77 | 10.10 | 24.1 | 42.1 | |||
| 1.81 | 10.33 | 25.1 | 43.1 | |||
| 1.97 | 10.56 | 25.6 | 43.6 | |||
| 1.95 | 10.4 | 26.09 | 43.1 | |||
| 2.07 | 10.6 | 26.1 | 44.1 | |||
| 2.11 | 10.85 | 26.6 | 45.1 | |||
| 2.20 | 11.09 | 27.09 | 46.1 | |||
| 2.21 | 11.56 | 26.6 | 46.6 | |||
| 2.30 | 12.1 | 27.1 | 47.1 | |||
| 2.56 | 12.6 | 28.1 | 48.1 | |||
| 2.70 | 13.09 | 28.6 | 48.6 | |||
| 2.97 | 13.60 | 29.09 | M52×5 | 47.297 | 46.587 | 47.1 |
| 3.20 | 14.09 | 30.1 | M52×4 | 48.270 | 47.670 | 48.1 |
| 3.38 | 14.1 | 30.6 | M52×3 | 49.252 | 48.752 | 49.1 |
| 3.56 | 14.6 | 29.6 | M52×2 | 50.210 | 49.835 | 50.1 |
| 3.83 | 15.09 | 30.1 | M52×1.5 | 50.676 | 50.376 | 50.6 |
| 4.06 | 15.60 | 31.1 | M55×4 | 51.270 | 50.670 | 51.1 |
| 4.28 | 16.09 | 31.6 | M55×3 | 52.252 | 51.752 | 52.1 |
| 4.56 | 15.6 | 33.6 | M55×2 | 53.210 | 52.835 | 53.1 |
| 4.959 5.099 M5.5×0.5 5.06 | 16.1 | 32.1 | M55×1.5 | 53.676 | 53.376 | 53.6 |
| 5.09 | 16.6 | 33.1 | M56×5.5 | 50.796 | 50.046 | 50.6 |
| 5.33 | 17.09 | 34.1 | M56×4 | 52.270 | 51.670 | 52.1 |
| 5.56 | 17.6 | 34.6 | M56×3 | 53.252 | 52.752 | 53.1 |
| 6.09 | D1: Minor diameter of 6H internal thread. | M56×2 | 54.210 | 53.835 | 54.1 | |
| M56×1.5 | 54.676 | 54.376 | 54.6 |