
| Size | Class | Code | Chamfer | L (mm) | ℓ (mm) | ℓn (mm) | ℓs (mm) | Ds (mm) | K (mm) | ℓk (mm) | No. of flutes | Type | Stock |
| M18×1.5 | P2 | SPQ018O--L | 2.5P | 100 | 33 | - | 51 | 14 | 11 | 14 | 4 | 2 | △ |
| M20×2.5 | P3 | SPR020R--L | 2.5P | 105 | 33 | - | 50 | 15 | 12 | 15 | 4 | 3 | ○ |
| M20×1.5 | P3 | SPR020O--L | 2.5P | 105 | 33 | - | 50 | 15 | 12 | 15 | 4 | 3 | △ |
| M22×2.5 | P3 | SPR022R--L | 2.5P | 115 | 33 | - | 55 | 17 | 13 | 16 | 4 | 3 | △ |
| M22×1.5 | P3 | SPR022O--L | 2.5P | 115 | 33 | - | 55 | 17 | 13 | 16 | 4 | 3 | △ |
| M24×3 | P3 | SPR024S--L | 2.5P | 120 | 39 | - | 55 | 19 | 15 | 18 | 4 | 3 | ○ |
| M24×1.5 | P3 | SPR024O--L | 2.5P | 120 | 39 | - | 55 | 19 | 15 | 18 | 4 | 3 | △ |
| M27×3 | P3 | SPR027S--L | 2.5P | 130 | 39 | - | 60 | 20 | 15 | 18 | 4 | 3 | △ |
| M30×3.5 | P4 | SPS030T--L | 2.5P | 135 | 46 | - | 62 | 23 | 17 | 20 | 4 | 3 | △ |
| M30×2 | P3 | SPR030Q--L | 2.5P | 135 | 46 | - | 62 | 23 | 17 | 20 | 4 | 3 | △ |
| M30×1.5 | P3 | SPR030O--L | 2.5P | 135 | 46 | - | 62 | 23 | 17 | 20 | 4 | 3 | △ |
| For Unified Threads | i | ||||||||||||
| Size | Class | Code | Chamfer | L (mm) | ℓ (mm) | ℓn (mm) | ℓs (mm) | Ds (mm) | K (mm) | ℓk (mm) | No. of flutes | Type | Stock |
| 1/4-20UNC | P2 | SPQU04N--L | 2.5P | 62 | 15 | 26 | 33 | 6 | 4.5 | 7 | l 3 | 1 | △ |
| 1/4-28UNF | P2 | SPQU04K--L | 2.5P | 62 | 15 | 26 | 33 | 6 | 4.5 | 7 | 3 | 1 | △ |
| 5/16-18UNC | P2 | SPQU05O--L | 2.5P | 70 | 19 | - | 36 | 6.2 | 5 | 8 | 3 | 2 | △ |
| 5/16-24UNF | P2 | SPQU05M--L | 2.5P | 70 | 19 | - | 36 | 6.2 | 5 | 8 | 3 | 2 | △ |
| 3/8-16UNC | P2 | SPQU06P--L | 2.5P | 75 | 23 | - | 38 | 7 | 5.5 | 8 | 3 | 2 | △ |
| 3/8-24UNF | P2 | SPQU06M--L | 2.5P | 75 | 23 | - | 38 | 7 | 5.5 | 8 | 3 | 2 | △ |
| 7/16-14UNC | P3 | SPRU07Q--L | 2.5P | 82 | 26 | - | 42 | 8.5 | 6.5 | 9 | 3 | 2 | △ |
| 7/16-20UNF | P2 | SPQU07N--L | 2.5P | 82 | 26 | - | 42 | 8.5 | 6.5 | 9 | 3 | 2 | △ |
| 1/2-13UNC | P3 | SPRU08R--L | 2.5P | 88 | 26 | - | 45 | 10.5 | 8 | 11 | 3 | 2 | △ |
| 1/2-20UNF | P2 | SPQU08N--L | 2.5P | 88 | 26 | - | 45 | 10.5 | 8 | 11 | 3 | 2 | △ |
| For Whitworth Thre | ads | ||||||||||||
| Size | Class | Code | Chamfer | L (mm) | ℓ (mm) | ℓn (mm) | ℓs (mm) | Ds (mm) | K (mm) | ℓk (mm) | No. of flutes | Type | Stock |
| 1/4W20 | P2 | SPQW04N--L | 2.5P | 62 | 15 | 26 | 33 | 6 | 4.5 | 7 | l 3 | 1 | △ |
| 5/16W18 | P2 | SPQW05O--L | 2.5P | 70 | 19 | - | 36 | 6.2 | 5 | 8 | 3 | 2 | △ |
| 3/8W16 | P2 | SPQW06P--L | 2.5P | 75 | 23 | - | 38 | 7 | 5.5 | 8 | 3 | 2 | △ |
| 7/16W14 | P3 | SPRW07Q--L | 2.5P | 82 | 26 | - | 42 | 8.5 | 6.5 | 9 | 3 | 2 | △ |
| 1/2W12 | P3 | SPRW08S--L | 2.5P | 88 | 26 | - | 45 | 10.5 | 8 | 11 | 3 | 2 | △ |
| 5/8W11 | P3 | SPRW10U--L | 2.5P | 95 | 26 | - | 48 | 12.5 | 10 | 13 | 3 | 2 | △ |
| 3/4W10 | P3 | SPRW12V--L | 2.5P | 105 | 33 | - | 50 | 15 | 12 | 15 | 4 | 3 | △ |