
| O l | verall ength Thre leng | ad th Thread+N length | eck Shank dia. | Size of square | Length of square | ||||||
| ELX NI SP | Spiral | Fluted Ta | ps for Ni | ckel B | ase All | oys | L ℓ | ℓn | Ds | K | ℓk |
| Size | Class | Code | Chamfer | L (inch) | ℓ (inch) | ℓn (inch) | Ds (inch) | K (inch) | ℓk (inch) | No. of flutes | Type |
| 5/16-24UNF | GH6 GH7 | Y87563 Y87576 | 3P | 2.718 | 0.394 | 1.125 | 0.318 | 0.238 | 0.375 | 3 | 3 |
| 3/8-16UNC | GH3 GH5 | Y87517 Y87017 Y87547 Y87047 | 3P 1.5P 3P 1.5P | 2.937 | 0.551 | 1.25 | 0.381 | 0.286 | 0.437 | 3 | 3 |
| 3/8-24UNF | GH3 GH4 GH5 GH6 | Y87518 Y87533 Y87033 Y87548 Y87564 | 3P 1.5P 3P | 2.937 | 0.394 | 1.25 | 0.381 | 0.286 | 0.437 | 3 | 3 |
| GH7 | Y87578 | ||||||||||
| 7/16-14UNC | GH3 GH5 | Y87519 Y87549 | 3P | 3.156 | 0.591 | - | 0.323 | 0.242 | 0.406 | 3 | 4 |
| 7/16-20UNF | GH3 GH5 | Y87520 Y87573 Y87550 Y87050 | 3P 1.5P 3P 1.5P | 3.156 | 0.472 | - | 0.323 | 0.242 | 0.406 | 3 | 4 |
| 1/2-13UNC | GH3 GH5 GH7 | Y87521 Y87500 Y87551 Y87051 Y87581 | 3P 1.5P 3P 1.5P 3P | 3.375 | 0.630 | - | 0.367 | 0.275 | 0.437 | 3 | 4 |
| 1/2-20UNF | GH3 GH5 GH7 | Y87522 Y87022 Y87552 Y87582 | 3P 1.5P 3P | 3.375 | 0.472 | - | 0.367 | 0.275 | 0.437 | 3 | 4 |
| 9/16-18UNF | GH3 GH5 | Y88554 Y88542 | 3P | 3.593 | 0.512 | - | 0.429 | 0.322 | 0.5 | 3 | 4 |
| 5/8-11UNC | GH3 GH5 GH7 | Y87525 Y87555 Y87585 | 3P | 3.812 | 0.748 | - | 0.480 | 0.36 | 0.562 | 4 | 4 |
| 5/8-18UNF | GH3 GH4 GH5 | Y87526 Y81508 Y87536 Y87556 | 3P 1.5P 3P | 3.812 | 0.512 | - | 0.480 | 0.36 | 0.562 | 4 | 4 |
| 3/4-10UNC | GH3 GH5 | Y87527 Y87027 Y87557 | 3P 1.5P 3P | 4.25 | 0.827 | - | 0.590 | 0.442 | 0.687 | 4 | 4 |
| 3/4-16UNF | GH3 GH5 | Y87528 Y87558 | 3P | 4.25 | 0.591 | - | 0.590 | 0.442 | 0.687 | 4 | 4 |