
unit: mm unit: mm
Major Minor Major Minor
Pitch Diameter Pitch Diameter
Diameter Diameter Diameter Diameter
Size Class Upper Lower Size Class Upper Lower
Tolerance Tolerance Tolerance Tolerance
Basic Size Basic Size Basic Size Basic Size Basic Size Basic Size
| (μm) | (μm) | (μm) | (μm) |
| + | + | + | + |
STI M 2.6 ×0.45 b 3.185 2.892 18 6 2.698 b 18 6
STI No. 2 - 56 UNC 2.773 2.479 2.283
b 18 6 GH2 25.4 12.7
STI M 3 ×0.5 3.650 3.324 3.108
G3 38 25 b 18 6
STI No. 4 - 40 UNC 3.670 3.258 2.981
b 18 6 GH2 25.4 12.7
STI M 4 ×0.7 4.909 4.454 4.151
| G4 | 51 | 38 | STI | No. 4 - 48 UNF | b | 3.532 | 3.189 | 18 | 6 | 2.958 |
| b | 18 | 6 | STI | No. 5 - 40 UNC | b | 4.000 | 3.589 | 18 | 6 | 3.312 |
STI M 5 ×0.8 6.039 5.519 5.173
G4 51 38 b 18 6
STI No. 6 - 32 UNC 4.536 4.021 3.678
b 18 6 GH3 38.1 25.4
STI M 6 ×1 7.299 6.649 6.216
| G4 | 51 | 38 | STI | No. 6 - 40 UNF | b | 4.330 | 3.919 | 18 | 6 | 3.642 | ||||||
| b | 18 | 6 | b | 18 | 6 | |||||||||||
| STI M 8 | ×1.25 | 9.624 | 8.812 | 8.271 | STI | No. 8 - 32 UNC | 5.197 | 4.681 | 4.338 | |||||||
| G4 | 51 | 38 | GH3 | 38.1 | 25.4 | |||||||||||
| b | 22 | 7 | STI | No. 8 - 36 UNF | b | 5.083 | 4.625 | 18 | 6 | 4.318 | ||||||
| STI M 10 ×1.5 | 11.948 | 10.974 | 10.324 | |||||||||||||
| G5 | 64 | 51 | b | 18 | 6 | |||||||||||
| STI | No. 10 - 24 UNC | 6.201 | 5.513 | 5.055 | ||||||||||||
| STI M 10 ×1.25 | b | 11.624 | 10.812 | 18 | 6 | 10.271 | GH2 | 25.4 | 12.7 | |||||||
| STI M 10 × 1 | b | 11.299 | 10.649 | 18 | 6 | 10.216 | b | 18 | 6 | |||||||
| STI | No. 10 - 32 UNF | 5.857 | 5.341 | 4.998 | ||||||||||||
| b | 22 | 7 | GH2 | 25.4 | 12.7 | |||||||||||
| STI M 12 × 1.75 | 14.273 | 13.136 | 12.379 | |||||||||||||
| G6 | 76 | 64 | STI | No. 12 - 24 UNC | b | 6.861 | 6.173 | 18 | 6 | 5.716 | ||||||
| STI M 12 × 1.5 | b | 13.948 | 12.974 | 21 | 7 | 12.324 | b | 22 | 7 | |||||||
| STI | 1/4 - 20 UNC | 8.000 | 7.174 | 6.626 | ||||||||||||
| STI M 12 × 1.25 | b | 13.624 | 12.812 | 21 | 7 | 12.271 | GH3 | 38.1 | 25.4 | |||||||
| STI M 14 × 2 | b | 16.598 | 15.299 | 22 | 7 | 14.433 | b | 18 | 6 | |||||||
| STI | 1/4 - 28 UNF | 7.528 | 6.939 | 6.545 | ||||||||||||
| STI M 14 × 1.5 | b | 15.948 | 14.974 | 21 | 7 | 14.324 | GH2 | 25.4 | 12.7 | |||||||
| STI M 16 × 2 | b | 18.598 | 17.299 | 22 | 7 | 16.433 | b | 22 | 7 | |||||||
| STI | 5/16 - 18 UNC | 9.771 | 8.854 | 8.244 | ||||||||||||
| STI M 16 × 1.5 | b | 17.948 | 16.974 | 21 | 7 | 16.324 | GH3 | 38.1 | 25.4 | |||||||
| STI M 18 × 2.5 | b | 21.248 | 19.624 | 30 | 10 | 18.542 | STI | 5/ | - 24 UNF | b | 9.313 | 8.624 | 18 | 6 | 8.167 |
16
STI M 18 × 1.5 b 19.948 18.974 24 8 18.324 b 22 7
STI 3/ 8 - 16 UNC 11.587 10.556 9.867
| STI M 20 × 2.5 | b | 23.248 | 21.624 | 30 | 10 | 20.542 | GH3 | 38.1 | 25.4 | ||||||||
| STI M 20 × 1.5 | b | 21.948 | 20.974 | 24 | 8 | 20.324 | STI | 3/ | - 24 UNF | b | 10.900 | 10.212 | 18 | 6 | 9.754 |
8
STI M 22 × 2.5 b 25.248 23.624 30 10 22.542 b 30 10
STI 7/ 16 - 14 UNC 13.469 12.291 11.506
| STI M 22 × 1.5 | b | 23.948 | 22.974 | 24 | 8 | 22.324 | GH3 | 38.1 | 25.4 | ||
| STI M 24 × 3 | b | 27.897 | 25.948 | 30 | 10 | 24.649 | b | 18 | 6 |
STI 7/ 16 - 20 UNF 12.762 11.937 11.388
| STI M 24 × 1.5 | b | 25.948 | 24.974 | 24 | 8 | 24.324 | GH3 | 38.1 | 25.4 | |
| b | 30 | 10 |
STI 1/2 - 13 UNC 15.238 13.968 13.122
GH3 38.1 25.4
| STI | 1/2 - 20 UNF | b | 14.350 | 13.524 | 18 | 6 | 12.976 |
| STI | 5/ 8 - 11 UNC | b | 18.875 | 17.376 | 30 | 10 | 16.376 |
| STI | 5/ 8 - 18 UNF | b | 17.708 | 16.791 | 21 | 7 | 16.181 |
| STI | 3/4 - 16 UNF | b | 21.112 | 20.081 | 21 | 7 | 19.392 |