
| Size | Class | Major Diameter | Pitch | Diame Upper | ter Lower | Unit:mm Minor Diameter | |
| Basic Size | Basic Size | Tolerance ( μ m) + | Tolerance ( μ m) + | Basic Size | |||
| P5 | 100 | 60 | |||||
| 11/4 - 7 | UNC | 2B | 31.750 | 29.393 | 79 | 38 | 27.823 |
| GH4 | 50.8 | 25.4 | |||||
| 11/4 - 8 | UN | P5 | 31.750 | 29.688 | 100 | 60 | 28.313 |
| P4 | 80 | 60 | |||||
| 11/4 - 12 | UNF | 2B | 31.750 | 30.376 | 70 | 29 | 29.459 |
| GH4 | 50.8 | 25.4 | |||||
| 13/8 - 6 | UNC | P5 GH4 | 34.925 | 32.174 | 100 50.8 | 60 25.4 | 30.343 |
| 13/8 - 8 | UN | P5 | 34.925 | 32.863 | 100 | 60 | 31.488 |
| P4 | 80 | 40 | |||||
| 13/8 - 12 | UNF | 2B | 34.925 | 33.551 | 71 | 29 | 32.634 |
| GH4 | 50.8 | 25.4 | |||||
| 11/2 - 6 | UNC | P5 | 38.100 | 35.349 | 100 | 60 | 33.518 |
| GH4 | 50.8 | 25.4 | |||||
| P4 | 80 | 40 | |||||
| 11/2 - 12 | UNF | 2B | 38.100 | 36.726 | 73 | 29 | 35.809 |
| GH4 | 50.8 | 25.4 | |||||
| 13/4 - 5 | UNC | P6 | 44.450 | 41.151 | 120 | 80 | 38.951 |
| 13/4 - 12 | UN | P4 | 44.450 | 43.076 | 80 | 40 | 42.159 |
| 2 - 4 1/2 | UNC | P6 | 50.800 | 47.135 | 120 | 80 | 44.689 |
| 2 - 12 | UN | P4 | 50.800 | 49.426 | 80 | 40 | 48.509 |
| Size | Class | Major Diameter | Pitch | Diamet Upper | er Lower | Minor Diameter | ||
| Basic Size | Basic Size | Tolerance ( μ m) + T | olerance ( μ m) + | Basic Size | ||||
| P4 | 80 | 60 | ||||||
| 5/8 | - 11 | UNC | 2B | 15.875 | 14.376 | 63 | 30 | 13.376 |
| GH1 | 12.7 | 0 | ||||||
| P3 | 60 | 40 | ||||||
| 5/8 | - 18 | UNF | 2B | 15.875 | 14.958 | 56 | 23 | 14.348 |
| GH1 | 12.7 | 0 | ||||||
| 5/8 | - 24 | UNEF | P3 | 15.875 | 15.187 | 60 | 40 | 14.729 |
| 11/16 | - 11 | UNS | GH3 | 17.462 | 15.964 | 38.1 | 25.4 | 14.963 |
| 11/16 | - 16 | UNS | GH3 | 17.462 | 16.431 | 38.1 | 25.4 | 15.743 |
| P4 | 80 | 60 | ||||||
| 3/4 | - 10 | UNC | 2B | 19.050 | 17.399 | 66 | 31 | 16.299 |
| GH2 | 25.4 | 12.7 | ||||||
| P3 | 60 | 40 | ||||||
| 3/4 | - 16 | UNF | 2B | 19.050 | 18.019 | 60 | 25 | 17.330 |
| GH1 | 12.7 | 0 | ||||||
| 3/4 | - 20 | UNEF | P3 | 19.050 | 18.224 | 60 | 40 | 17.676 |
| P4 | 80 | 60 | ||||||
| 7/8 | - 9 | UNC | 2B | 22.225 | 20.391 | 70 | 33 | 19.169 |
| GH2 | 25.4 | 12.7 | ||||||
| P3 | 60 | 40 | ||||||
| 7/8 | - 14 | UNF | 2B | 22.225 | 21.046 | 64 | 27 | 20.262 |
| GH1 | 12.7 | 0 | ||||||
| 7/8 | - 20 | UNEF | P3 | 22.225 | 21.400 | 60 | 40 | 20.851 |
| P4 | 80 | 40 | ||||||
| 1 | - 8 | UNC | 2B | 25.400 | 23.338 | 73 | 35 | 21.963 |
| GH2 | 25.4 | 12.7 | ||||||
| P4 | 80 | 60 | ||||||
| 1 | - 12 | UNF | 2B | 25.400 | 24.026 | 67 | 29 | 23.109 |
| GH4 | 50.8 | 38.1 | ||||||
| P4 | 80 | 60 | ||||||
| 1 | - 14 | UNS | 2B | 25.400 | 24.221 | 65 | 38 | 23.437 |
| GH2 | 25.4 | 12.7 | ||||||
| 1 | - 20 | UNEF | P3 | 25.400 | 24.574 | 60 | 40 | 24.026 |
| 11/8 | 7 | UNC | P5 | 28575 | 26218 | 100 | 60 | 24648 |
| GH4 | . | . | 50.8 | 25.4 | . | |||
| P3 | 60 | 40 | ||||||
| 11/8 | - 12 | UNF | 2B | 28.575 | 27.201 | 69 | 29 | 26.284 |
| GH4 | 50.8 | 25.4 | ||||||
| 11/8 | - 18 | UNEF | P3 | 28.575 | 27.658 | 60 | 40 | 27.048 |