
Helical Coil Wire Thread Inserts, Helical Coil Wire Thread Inserts,
Metric Threads EG(STI)M-MF Unit: mm Unified Threads EG(STI) UNC/UNF Unit: mm
| Size | Class | Major diameter | Pit | ch Diame | ter | Minor diameter | Siz | e | Class | Major diameter | Pit | ch Diame | ter | Minor diameter | |||||
| Basic Size | Basic Size | Upper Tolerance (μm) + | Lower Tolerance (μm) + | Basic Size | Basic Size | Basic Size | Upper Tolerance (μm) + | Lower Tolerance (μm) + | Basic Size | ||||||||||
| STI | M | 2.6 | × | 0.45 | Ib | 3.185 | 2.892 | 18 | 6 | 2.698 | STI | No. | 2 - 56 UNC | Ib | 2.773 | 2.479 | 18 | 6 | 2.283 |
| STI | M | 3 | 05 | Ib | 3650 | 3324 | 18 | 6 | 3108 | GH2 | 25.4 | 12.7 | |||||||
| × | . | G3 | . | . | 38 | 25 | . | STI | No. | 4 - 40 UNC | Ib | 3.670 | 3.258 | 18 | 6 | 2.981 | |||
| Ib | 18 | 6 | GH2 | 25.4 | 12.7 | ||||||||||||||
| STI | M | 4 | × | 0.7 | G4 | 4.909 | 4.454 | 51 | 38 | 4.151 | STI | No. | 4 - 48 UNF | Ib | 3.532 | 3.189 | 18 | 6 | 2.958 |
| STI | M | 5 | × | 08 | Ib | 6039 | 5519 | 18 | 6 | 5173 | STI | No. | 5 - 40 UNC | Ib | 4.000 | 3.589 | 18 | 6 | 3.312 |
| . | G4 | . | . | 51 | 38 | . | STI | No. | 6 - 32 UNC | Ib | 4.536 | 4.021 | 18 | 6 | 3.678 | ||||
| Ib | 18 | 6 | GH3 | 38.1 | 25.4 | ||||||||||||||
| STI | M | 6 | × | 1 | G4 | 7.299 | 6.649 | 51 | 38 | 6.216 | STI | No. | 6 - 40 UNF | Ib | 4.330 | 3.919 | 18 | 6 | 3.642 |
| STI | M | 8 | × | 1.25 | Ib G4 | 9.624 | 8.812 | 18 51 | 6 38 | 8.271 | STI | No. | 8 - 32 UNC | Ib GH3 | 5.197 | 4.681 | 18 38.1 | 6 25.4 | 4.338 |
| STI | M | 10 | × | 15 | Ib | 11948 | 10974 | 22 | 7 | 10324 | STI | No. | 8 - 36 UNF | Ib | 5.083 | 4.625 | 18 | 6 | 4.318 |
| . | G5 | . | . | 64 | 51 | . | Ib | 18 | 6 | ||||||||||
| STI | MF | 10 | × | 1.25 | Ib | 11.624 | 10.812 | 18 | 6 | 10.271 | STI | No. | 10 - 24 UNC | GH2 | 6.201 | 5.513 | 25.4 | 12.7 | 5.055 |
| STI | MF | 10 | × | 1 | Ib | 11.299 | 10.649 | 18 | 6 | 10.216 | STI | No. | 10 - 32 UNF | Ib | 5.857 | 5.341 | 18 | 6 | 4.998 |
| Ib | 22 | 7 | GH2 | 25.4 | 12.7 | ||||||||||||||
| STI | M | 12 | × | 1.75 | G6 | 14.273 | 13.136 | 76 | 64 | 12.379 | STI | No. | 12 - 24 UNC | Ib | 6.861 | 6.173 | 18 | 6 | 5.716 |
| STI | MF | 12 | × | 1.5 | Ib | 13.948 | 12.974 | 21 | 7 | 12.324 | STI1/ | - 20 UNC | Ib | 8000 | 7174 | 22 | 7 | 6626 | |
| STI | MF | 12 | × | 1.25 | Ib | 13.624 | 12.812 | 21 | 7 | 12.271 | GH3 | . | . | 38.1 | 25.4 | . | |||
| STI | M | 14 | × | 2 | Ib | 16.598 | 15.299 | 22 | 7 | 14.433 | Ib | 7.528 | 6.939 | 18 | 6 | 6.545 | |||
| STI | MF | 14 | × | 1.5 | Ib | 15.948 | 14.974 | 21 | 7 | 14.324 | STI 1/ | - 28 UNF | GH2 | 25.4 | 12.7 | ||||
| STI | M | 16 | × | 2 | Ib | 18.598 | 17.299 | 22 | 7 | 16.433 | Ib | 9.771 | 8.854 | 22 | 7 | 8.244 | |||
| STI | MF | 16 | × | 1.5 | Ib | 17.948 | 16.974 | 21 | 7 | 16.324 | STI 5/1 | 6 - 18 UNC | GH3 | 38.1 | 25.4 | ||||
| STI | M | 18 | × | 2.5 | Ib | 21.248 | 19.624 | 30 | 10 | 18.542 | STI 5/1 | 6 - 24 UNF | Ib | 9.313 | 8.624 | 18 | 6 | 8.167 | |
| STI | MF | 18 | × | 1.5 | Ib | 19.948 | 18.974 | 24 | 8 | 18.324 | Ib | 11.587 | 10.556 | 22 | 7 | 9.867 | |||
| STI | M | 20 | × | 2.5 | Ib | 23.248 | 21.624 | 30 | 10 | 20.542 | STI 3/ | - 16 UNC | GH3 | 38.1 | 25.4 | ||||
| STI | MF | 20 | × | 1.5 | Ib | 21.948 | 20.974 | 24 | 8 | 20.324 | STI 3/ | 8 - 24 UNF | Ib | 10.900 | 10.212 | 18 | 6 | 9.754 | |
| STI | M | 22 | × | 2.5 | Ib | 25.248 | 23.624 | 30 | 10 | 22.542 | Ib | 13.469 | 12.291 | 30 | 10 | 11.506 | |||
| STI | MF | 22 | × | 1.5 | Ib | 23.948 | 22.974 | 24 | 8 | 22.324 | STI 7/1 | 6 - 14 UNC | GH3 | 38.1 | 25.4 | ||||
| STI | M | 24 | × | 3 | Ib | 27.897 | 25.948 | 30 | 10 | 24.649 | Ib | 12.762 | 11.937 | 18 | 6 | 11.388 | |||
| STI | MF | 24 | × | 1.5 | Ib | 25.948 | 24.974 | 24 | 8 | 24.324 | STI 7/1 | 6 - 20 UNF | GH3 | 38.1 | 25.4 | ||||
| STI 1/2 | - 13 UNC | Ib | 15.238 | 13.968 | 30 | 10 | 13.122 | ||||||||||||
| GH3 | 381 | 254 | |||||||||||||||||
| in | iatur | e Scr | ew | Threa | ds (S) | Unit: mm | STI 1/ | 2 - 20 UNF | Ib | 14.350 | 13.524 | . 18 | . 6 | 12.976 | |||||
| Major diameter | Pit | ch Diame | ter | Minor diameter | STI 5/8 | - 11 UNC | Ib | 18.875 | 17.376 | 30 | 10 | 16.376 | |||||||
| Size | Class | Upper | Lower | STI 5/ | 8 - 18 UNF | Ib | 17.708 | 16.791 | 21 | 7 | 16.181 | ||||||||
| Basic Size | Basic Size | Tolerance | Tolerance | Basic Size | STI 3/ | 4 - 16 UNF | Ib | 21.112 | 20.081 | 21 | 7 | 19.392 |
| Major diameter | Pit | ch Diamet | er | Minor diameter | |||||
| Siz | e | Class | Basic Size | Basic Size | Upper Tolerance (μm) + | Lower Tolerance (μm) + | Basic Size | ||
| S | 0.5 | × | 0.125 | - | 0.500 | 0.419 | 15 | 7 | 0.380 |
| S | 06 | × | 015 | - | 0600 | 0503 | 15 | 7 | 0456 |
| . | . | GS2 | . | . | 23 | 13 | . | ||
| S | 07 | 0175 | - | 0700 | 0586 | 20 | 10 | 0532 | |
| . | × | . | GS3 | . | . | 28 | 18 | . | |
| S | 08 | × | 02 | - | 0800 | 0670 | 20 | 10 | 0608 |
| . | . | GS3 | . | . | 28 | 18 | . | ||
| S | 09 | 022 | - | 0900 | 074 | 20 | 10 | 0684 | |
| . | × | .5 | GS4 | . | .5 | 33 | 23 | . |
Unit: mm
| Major diameter | P | itch Diamet | er | Minor diameter | |||||
| Size | Class | Basic Size | Basic Size | Upper Tolerance (μm) + | Lower Tolerance (μm) + | Basic Size | |||
| Pg | 7 | - | 20 | - | 12.50 | 11.89 | 60 | 30 | 11.28 |
| Pg | 9 | - | 18 | - | 15.20 | 14.53 | 60 | 30 | 13.86 |
| Pg | 11 | - | 18 | - | 18.60 | 17.93 | 60 | 30 | 17.26 |
| Pg | 13.5 | - | 18 | - | 20.40 | 19.73 | 60 | 30 | 19.06 |
| Pg | 16 | - | 18 | - | 22.50 | 21.83 | 60 | 30 | 21.16 |
| Pg | 21 | - | 16 | - | 28.30 | 27.54 | 100 | 50 | 26.78 |
| Pg | 29 | - | 16 | - | 37.00 | 36.24 | 100 | 50 | 35.48 |