
| iral Flut | d | ap Ser | ies | Overall length | Chamf full thr | er + ead | Thread length T | hread+Neck length | Shank length | Sh di | ank a. | Size of square | Length of square | |
| L | ℓ | t | ℓ | ℓn | ℓs | D | s | K | ℓk | |||||
| Size ZEN-B Spira | Class l Flute | Code d Taps for | Chamfer Nickel B | L (mm) ase | ℓt (mm) Alloys | ℓ (mm) | ℓn (mm) | ℓs (mm) | Ds (mm) | K (mm) | ℓk (mm) | No. o flutes | f l Type | Stock |
| For Unified Threads | ||||||||||||||
| NO.4-40UNC | 2BX | SDUN4HYJPX | 3P | 56 | 5 | 9 | 18 | 34 | 3.5 | 2.7 | 6 | 3 | 1 | ● |
| NO.6-32UNC | 2BX | SDUN6JYJPX | 3P | 56 | 7 | 11 | 19 | 32 | 4 | 3 | 6 | 3 | 1 | ● |
| NO.8-32UNC | 2BX | SDUN8JYJPX | 3P | 63 | 7 | 13 | 21 | 38 | 4.5 | 3.4 | 6 | 3 | 1 | ● |
| NO.10-24UNC | 2BX | SDUNAMYJPX | 3P | 70 | 9 | 14 | 24 | 39 | 6 | 4.9 | 8 | 3 | 1 | ● |
| NO.10-32UNF | 2BX | SDUNAJYJPX | 3P | 70 | 9 | 14 | 24 | 39 | 6 | 4.9 | 8 | 3 | 1 | ● |
| 1/4-20UNC | 2BX | SDU04NYJPX | 3P | 80 | 11 | 15 | 30 | 42 | 7 | 5.5 | 8 | 3 | 1 | ● |
| 1/4-28UNF | 2BX | SDU04KYJPX | 3P | 80 | 11 | 15 | 30 | 42 | 7 | 5.5 | 8 | 3 | 1 | ● |
| 5/16-18UNC | 2BX | SDU05OYJPX | 3P | 90 | - | 12 | 35 | 47 | 8 | 6.2 | 9 | 3 | 2 | ● |
| 5/16-24UNF | 2BX | SMU05MYJPX | 3P | 90 | - | 12 | - | 46 | 6 | 4.9 | 8 | 3 | 3 | ● |
| 3/8-16UNC | 2BX | SDU06PYJPX | 3P | 100 | - | 13 | 39 | 54 | 9 | 7 | 10 | 3 | 2 | ● |
| 3/8-24UNF | 2BX | SMU06MYJPX | 3P | 100 | - | 13 | - | 51 | 7 | 5.5 | 8 | 3 | 3 | ● |
| 7/16-20UNF | 2BX | SMU07NYJPX | 3P | 100 | - | 13 | - | 51 | 8 | 6.2 | 9 | 3 | 3 | ● |
| 1/2-13UNC | 2BX | SGU08RYJPX | 3P | 110 | - | 15 | - | 56 | 9 | 7 | 10 | 3 | 4 | ● |
| 1/2-20UNF | 2BX | SMU08NYJPX | 3P | 100 | - | 15 | - | 51 | 9 | 7 | 10 | 3 | 3 | ● |
| 9/16-18UNF | 2BX | SMU09OYJPX | 3P | 100 | - | 14 | - | 51 | 11 | 9 | 12 | 3 | 3 | ● |
| 5/8-11UNC | 2BX | SGU10UYJPX | 3P | 110 | - | 18 | - | 56 | 12 | 9 | 12 | 3 | 4 | ● |
| 5/8-18UNF | 2BX | SMU10OYJPX | 3P | 100 | - | 14 | - | 51 | 12 | 9 | 12 | 3 | 3 | ● |
| 3/4-10UNC | 2BX | SGU12VYJPX | 3P | 125 | - | 20 | - | 64 | 14 | 11 | 14 | 4 | 4 | ● |
| 3/4-16UNF | 2BX | SMU12PYJPX | 3P | 110 | - | 14 | - | 56 | 14 | 11 | 14 | 4 | 3 | ● |