
■ Hand tap cutting internal threads for helical coil to enter.
Oxide
ow carbon steels
For icon explanation, refer to P.50
Segment:1A
| Size | Class | Code | Chamfer | L | ℓ | ℓn | ℓs | Ds | K | ℓk | No. of l | Type |
| (inch) | (inch) | (inch) | (inch) | (inch) | (mm) | (mm) | flutes | |||||
| For Helical Coil Wire S i | crew Thr i | ead Inserts, for Ui | nified Thr | i eads | l | |||||||
| STI No.2-56UNC | GH1 GH2 | TUUN2E1NEX5 TUUN2E1NEXA TUUN2E2NEX5 TUUN2E2NEXA | 5P 1.5P 5P 1.5P | 2.205 | 0.354 | 0.709 | 1.28 | 0.141 | 0.11 | 0.187 | 3 | 1 |
| STI No.4-40UNC | GH1 GH2 | TUUN4H1NEX5 TUUN4H1NEXA TUUN4H2NEX5 TUUN4H2NEXA | 5P 1.5P 5P 1.5P | 2.48 | 0.512 | 0.827 | 1.496 | 0.168 | 0.131 | 0.25 | 3 | 1 |
| STI No.6-32UNC | GH1 GH2 | TUUN6J1NEX5 TUUN6J1NEXA TUUN6J2NEX5 TUUN6J2NEXA | 5P 1.5P 5P 1.5P | 2.756 | 0.551 | 0.945 | 1.654 | 0.194 | 0.131 | 0.25 | 3 | 1 |
| STI No.8-32UNC | GH1 GH2 | TUUN8J1NEX5 TUUN8J1NEXA TUUN8J2NEX5 | 5P 1.5P 5P | 3.15 | 0.591 | 0.984 | 1.929 | 0.22 | 0.165 | 0.281 | 3 | 1 |
| TUUN8J2NEXA | 1.5P | |||||||||||
| STI No.10-24UNC | GH2 GH3 | TUUNAM2NEX5 TUUNAM2NEXA TUUNAM3NEX5 | 5P 1.5P 5P | 3.15 | 0.591 | 1.181 | 1.713 | 0.255 | 0.191 | 0.312 | 3 | 1 |
| TUUNAM3NEXA | 1.5P | |||||||||||
| STI No.10-32UNF | GH2 GH3 | TUUNAJ2NEX5 TUUNAJ2NEXA TUUNAJ3NEX5 TUUNAJ3NEXA | 5P 1.5P 5P 1.5P | 3.15 | 0.591 | 1.181 | 1.713 | 0.255 | 0.191 | 0.312 | 3 | 1 |