
| Size | Class | Code | Chamfer | L | ℓ | ℓn | ℓs | Ds | K | ℓk | No. of |
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | flutes Type Stock |
M14 × 1 △
P2 SCMQ014M 2.5P 88 26 - 45 10.5 8 11 3 2
M16 × 2 ○
P2 SCMQ016Q 2.5P 95 26 - 48 12.5 10 13 3 2
M16 × 1.5 △
P2 SCMQ016O 2.5P 95 26 - 48 12.5 10 13 3 2
M16 × 1 △
P2 SCMQ016M 2.5P 95 26 - 48 12.5 10 13 3 2
M18 × 2.5 △
P3 SCMR018R 2.5P 100 33 - 51 14 11 14 4 2
M18 × 2 △
P3 SCMR018Q 2.5P 100 33 - 51 14 11 14 4 2
M18 × 1.5 △
P2 SCMQ018O 2.5P 100 33 - 51 14 11 14 4 2
M18 × 1 △
P2 SCMQ018M 2.5P 100 18 - 51 14 11 14 4 3
M20 × 2.5 ○
P3 SCMR020R 2.5P 105 33 - 50 15 12 15 4 4
M20 × 2 △
P3 SCMR020Q 2.5P 105 33 - 50 15 12 15 4 4
M20 × 1.5 △
P3 SCMR020O 2.5P 105 33 - 50 15 12 15 4 4
M20 × 1 △
P2 SCMQ020M 2.5P 105 18 - 50 15 12 15 4 5
M22 × 2.5 △
P3 SCMR022R 2.5P 115 33 - 55 17 13 16 4 4
M22 × 2 △
P3 SCMR022Q 2.5P 115 33 - 55 17 13 16 4 4
M22 × 1.5 △
P3 SCMR022O 2.5P 115 33 - 55 17 13 16 4 4
M24 × 3 △
P3 SCMR024S 2.5P 120 39 - 55 19 15 18 4 4
M24 × 2 △
P3 SCMR024Q 2.5P 120 39 - 55 19 15 18 4 4
M24 × 1.5 △
P3 SCMR024O 2.5P 120 39 - 55 19 15 18 4 4
M25 × 1.5 △
P3 SCMR025O 2.5P 125 39 - 58 19 15 18 4 4
M26 × 1.5 △
P3 SCMR026O 2.5P 130 39 - 60 20 15 18 4 4
M27 × 3 △
P3 SCMR027S 2.5P 130 39 - 60 20 15 18 4 4
M27 × 1.5 △
P3 SCMR027O 2.5P 130 39 - 60 20 15 18 4 4
M28 × 1.5 △
P3 SCMR028O 2.5P 135 46 - 62 23 17 20 4 4
M30 × 3.5 △
P4 SCMS030T 2.5P 135 46 - 62 23 17 20 4 4
M30 × 1.5 △
P3 SCMR030O 2.5P 135 46 - 62 23 17 20 4 4
For Whitworth Threads
| Size Class | Code Chamfer | L | ℓ | ℓn | ℓs | Ds | K | ℓk | No. of | ||||
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | flutes Type Stock | ||||||
| 1/4W20 | P2 | SCMQW04N | 2.5P | 62 | 15 | 26 | 33 | 6 | 4.5 | 7 | 3 | 1 | △ |
| 5/16W18 | P2 | SCMQW05O | 2.5P | 70 | 19 | - | 36 | 6.2 | 5 | 8 | 3 | 2 | △ |
| 3/8W16 | P2 | SCMQW06P | 2.5P | 75 | 23 | - | 38 | 7 | 5.5 | 8 | 3 | 2 | △ |
| 1/2W12 | P3 | SCMRW08S | 2.5P | 88 | 26 | - | 45 | 10.5 | 8 | 11 | 3 | 2 | △ |
| 5/8W11 | P3 | SCMRW10U | 2.5P | 95 | 26 | - | 48 | 12.5 | 10 | 13 | 3 | 2 | △ |
| 3/4W10 | P3 | SCMRW12V | 2.5P | 105 | 33 | - | 50 | 15 | 12 | 15 | 4 | 4 | △ |
| 7/8W9 | P3 | SCMRW14W | 2.5P | 115 | 33 | - | 55 | 17 | 13 | 16 | 4 | 4 | △ |
| 1 W8 | P3 | SCMRW16X | 2.5P | 125 | 39 | - | 58 | 19 | 15 | 18 | 4 | 4 | △ |