
Oxide
ow carbon steels
For icon explanation, refer to P.50
■ Suitable for low speed tapping of steels. For manual use and drilling machine use.
Segment:1A
| Size i | Class | Code | Chamfer | L (inch) | ℓ (inch) | ℓn (inch) | ℓs (inch) | Ds (inch) | K (inch) | ℓk (inch) | No. of flutes | Type |
| For Unified Threads | ||||||||||||
| No.6-32UNC | - | IAUN6JXHEX5 IAUN6JXHEX2 | 5P 2P | 2 | 0.374 | 0.669 | 1.201 | 0.141 | 0.11 | 0.187 | 3 | 1 |
| No.8-32UNC | - | IAUN8JXHEX5 IAUN8JXHEX2 | 5P 2P | 2.125 | 0.374 | 0.866 | 1.339 | 0.168 | 0.131 | 0.25 | 3 | 1 |
| No.10-24UNC | - | IAUNAMXHEX5 IAUNAMXHEX2 | 5P 2P | 2.375 | 0.512 | 0.866 | 1.339 | 0.194 | 0.152 | 0.25 | 3 | 1 |
| 1/4-20UNC | - | IAU04NXHEX5 IAU04NXHEX2 | 5P 2P | 2.5 | 0.591 | 1.024 | 1.22 | 0.255 | 0.191 | 0.312 | 3 | 2 |
| 5/16-18UNC | - | IAU05OXHEX5 IAU05OXHEX2 | 5P 2P | 2.718 | 0.669 | 1.004 | 1.378 | 0.318 | 0.238 | 0.375 | 3 | 3 |
| 3/8-16UNC | - | IAU06PXHEX5 IAU06PXHEX2 | 5P 2P | 2.937 | 0.748 | 1.059 | 1.496 | 0.381 | 0.286 | 0.437 | 3 | 3 |