
Oxide 1 1/8U~
ow carbon steels Medium carbon steels
For icon explanation, refer to P.50
Segment:1C
| Size | 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.2-56UNC | GH1 GH2 | SSUN2E1NEX SSUN2E2NEX | 2.5P | 1.772 | 0.314 | - | 1.161 | 0.141 | 0.11 | 0.187 | 2 | 1 |
| No.2-64UNF | GH1 GH2 | SSUN2D1NEX SSUN2D2NEX | 2.5P | 1.772 | 0.314 | - | 1.161 | 0.141 | 0.11 | 0.187 | 2 | 1 |
| No.3-48UNC | GH1 GH2 | SSUN3F1NEX SSUN3F2NEX | 2.5P | 2.205 | 0.354 | 0.669 | 1.28 | 0.141 | 0.11 | 0.187 | 2 | 2 |
| No.3-56UNF | GH1 GH2 | SSUN3E1NEX SSUN3E2NEX | 2.5P | 2.205 | 0.354 | 0.669 | 1.28 | 0.141 | 0.11 | 0.187 | 2 | 2 |
| No.4-40UNC | GH1 GH2 | SSUN4H1NEX SSUN4H2NEX | 2.5P | 2.205 | 0.354 | 0.709 | 1.28 | 0.141 | 0.11 | 0.187 | 2 | 2 |
| No.4-48UNF | GH1 GH2 | SSUN4F1NEX SSUN4F2NEX | 2.5P | 2.205 | 0.354 | 0.709 | 1.28 | 0.141 | 0.11 | 0.187 | 2 | 2 |
| No.5-40UNC | GH1 GH2 | SSUN5H1NEX SSUN5H2NEX | 2.5P | 2.205 | 0.433 | 0.768 | 1.358 | 0.141 | 0.11 | 0.187 | 2 | 2 |
| No.5-44UNF | GH1 GH2 | SSUN5G1NEX SSUN5G2NEX | 2.5P | 2.205 | 0.433 | 0.768 | 1.358 | 0.141 | 0.11 | 0.187 | 2 | 2 |
| GH1 | SSUN6J1NEX | |||||||||||
| No.6-32UNC | GH2 GH3 GH4 | SSUN6J2NEX SSUN6J3NEX SSUN6J4NEX | 2.5P | 2.205 | 0.433 | 0.768 | 1.358 | 0.141 | 0.11 | 0.187 | 3 | 2 |