
| Size | Class | Code | Chamfer | L | ℓ | ℓn | Ds | K | ℓk | No. of | Type |
| (inch) | (inch) | (inch) | (inch) | (inch) | (inch) | flutes |
For Unified Threads
| No.2-56UNC | GH2 | Y82623 | 4.5P | 1.75 | 0.256 | 0.437 | 0.141 | 0.11 | 0.187 | 2 | 1 |
| No.3-48UNC | GH2 | Y82600 | 4.5P | 1.812 | 0.295 | 0.5 | 0.141 | 0.11 | 0.187 | 2 | 1 |
GH2 Y82601 GH3 Y82602
No.4-40UNC 4.5P 1.875 0.335 0.562 0.141 0.11 0.187 2 1
GH4 Y82612 GH5 Y82634
| No.4-48UNF | GH2 | Y82683 | 4.5P | 1.875 | 0.335 | 0.562 | 0.141 | 0.11 | 0.187 | 2 | 1 |
| No.5-40UNC | GH2 | Y82603 | 4.5P | 1.937 | 0.374 | 0.625 | 0.141 | 0.11 | 0.187 | 3 | 1 |
GH2 Y82604 GH3 Y82605 GH4 Y82608
No.6-32UNC 4.5P 2 0.413 0.687 0.141 0.11 0.187 3 1
GH5 Y82635 GH6 Y82659 GH7 Y82665 GH2 Y82684
No.6-40UNF 4.5P 2 0.413 0.687 0.141 0.11 0.187 3 1
GH3 Y82642 GH2 Y82606 GH3 Y82607 GH4 Y82629
No.8-32UNC 4.5P 2.125 0.453 0.75 0.168 0.131 0.25 3 1
GH5 Y82637 GH6 Y82660 GH7 Y82667
No.8-36UNF GH2 Y82686 4.5P 2.125 0.453 0.75 0.168 0.131 0.25 3 1
GH3 Y82609 GH5 Y82639
No.10-24UNC 4.5P 2.375 0.531 0.875 0.194 0.152 0.25 3 1
GH6 Y82690 GH7 Y82669 GH2 Y82611 GH3 Y82610 GH4 Y82630
No.10-32UNF 4.5P 2.375 0.531 0.875 0.194 0.152 0.25 3 1
GH5 Y82640 GH6 Y82661 GH7 Y82670
| No.12-24UNC | GH3 | Y82688 | 4.5P | 2.375 | 0.571 | 0.937 | 0.220 | 0.165 | 0.281 | 3 | 1 |
| No.12-28UNF | GH3 | Y82689 | 4.5P | 2.375 | 0.571 | 0.937 | 0.220 | 0.165 | 0.281 | 3 | 1 |
GH3 Y82613 GH5 Y82643
1/4-20UNC 4.5P 2.5 0.591 1 0.255 0.191 0.312 3 2
GH6 Y82590 GH7 Y82673 GH3 Y82614 GH4 Y82631
1/4-28UNF GH5 Y82644 4.5P 2.5 0.591 1 0.255 0.191 0.312 3 2
GH6 Y82662 GH7 Y82674 GH3 Y82615
5/16-18UNC GH5 Y82645 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3
GH7 Y82675 GH3 Y82616
5/16-24UNF 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3