
| Size | Class | Code | Chamfer | L | ℓ | ℓn | ℓs | Ds | K | ℓk | No. of | |||||
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | flutes Type Stock | |||||||||
| No.6-40UNF | P2 | 5P | 52 | 11 | 16 | 29 | 5 | 4 | 7 | 3 | 3 | △ |
POQUN6H
No.8-32UNC P2 5P 60 13 21 33 5.5 4.5 7 3 3 ○
POQUN8J
No.8-36UNF P2 5P 60 13 21 33 5.5 4.5 7 3 3 △
POQUN8I
No.10-24UNC P2 5P 60 13 22 33 5.5 4.5 7 3 3 ○
POQUNAM
No.10-32UNF P2 5P 60 13 22 33 5.5 4.5 7 3 3 ○
POQUNAJ
No.12-24UNC P2 5P 62 15 26 33 6 4.5 7 3 3 △
POQUNCM
No.12-28UNF P2 5P 62 15 26 33 6 4.5 7 3 3 △
POQUNCK
1/4-20UNC P2 5P 62 15 26 33 6 4.5 7 3 3 ○
POQU04N
1/4-28UNF P2 5P 62 15 26 33 6 4.5 7 3 3 ○
POQU04K
1/4-32UNEF P2 5P 62 15 26 33 6 4.5 7 3 3 △
POQU04J
5/16-18UNC P3 5P 70 19 - 36 6.2 5 8 3 5 ○
PORU05O
5/16-24UNF P2 5P 70 19 - 36 6.2 5 8 3 5 ○
POQU05M
5/16-32UNEF P2 5P 70 19 - 36 6.2 5 8 3 5 △
POQU05J
3/8-16UNC P3 5P 75 23 - 38 7 5.5 8 3 5 ○
PORU06P
3/8-24UNF P2 5P 75 23 - 38 7 5.5 8 3 5 ○
POQU06M
3/8-32UNEF P2 5P 75 13 - 38 7 5.5 8 3 6 △
POQU06J
| 7/16-14UNC | P3 | PORU07Q | 5P | 82 | 26 | - | 42 | 8.5 | 6.5 | 9 | 3 | 5 | △ |
| 7/16-20UNF | P3 | 5P | 82 | 26 | - | 42 | 8.5 | 6.5 | 9 | 3 | 5 | ○ |
PORU07N
7/16-28UNEF P2 5P 82 26 - 42 8.5 6.5 9 3 5 △
POQU07K
1/2-13UNC P3 5P 88 26 - 45 10.5 8 11 3 5 ○
PORU08R
1/2-20UNF P3 5P 88 26 - 45 10.5 8 11 3 5 ○
PORU08N
1/2-28UNEF P2 5P 88 26 - 45 10.5 8 11 3 5 △
POQU08K
| 9/16-12UNC | P3 | PORU09S | 5P | 95 | 26 | - | 48 | 12.5 | 10 | 13 | 3 | 5 | △ |
| 9/16-18UNF | P3 | 5P | 95 | 26 | - | 48 | 12.5 | 10 | 13 | 3 | 5 | ○ |
PORU09O
5/8-11UNC P3 5P 95 26 - 48 12.5 10 13 3 5 △
PORU10U
5/8-18UNF P3 5P 95 26 - 48 12.5 10 13 3 5 △
PORU10O
3/4-10UNC P4 5P 105 33 - 50 15 12 15 3 7 △
POSU12V
3/4-16UNF P3 5P 105 33 - 50 15 12 15 3 7 ○
PORU12P
| 3/4-20UNEF | P3 | PORU12N | 5P | 105 | 33 | - | 50 | 15 | 12 | 15 | 3 | 7 | △ |
| 7/8-9UNC | P4 | 5P | 115 | 33 | - | 55 | 17 | 13 | 16 | 3 | 7 | △ |
POSU14W
7/8-14UNF P3 5P 115 33 - 55 17 13 16 3 7 △
PORU14Q
1 -8UNC P4 5P 125 39 - 58 19 15 18 3 7 △
POSU16X
1 -12UNF P4 5P 125 39 - 58 19 15 18 3 7 △
POSU16S
1 -14UNS P4 5P 125 39 - 58 19 15 18 3 7 △
POSU16Q
| 1 1/8-7UNC | P4 | POSU18Y | 5P | 135 | 46 | - | 62 | 23 | 17 | 20 | 4 | 7 | △ |
| 1 1/4-7UNC | P4 | POMSU20Y | 5P | 145 | 46 | - | 67 | 24 | 19 | 22 | 4 | 7 | △ |
| 1 3/8-6UNC | P5 | POMTU22Z | 5P | 155 | 52 | - | 71 | 28 | 21 | 24 | 4 | 7 | △ |
| 1 1/2-6UNC | P5 | POMTU24Z | 5P | 165 | 52 | - | 76 | 30 | 23 | 26 | 4 | 7 | △ |
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 | |||||||||
| 1/8W40 | P2 | 5P | 52 | 11 | 17 | 29 | 5 | 4 | 7 | 3 | 3 | △ |
POQW02H
5/32W32 P2 5P 52 11 17 29 5 4 7 3 3 △
POQW2HJ
| 3/16W24 | P2 | POQW03M | 5P | 60 | 13 | 21 | 33 | 5.5 | 4.5 | 7 | 3 | 3 | ○ |
| 7/32W24 | P2 | 5P | 62 | 15 | 26 | 33 | 6 | 4.5 | 7 | 3 | 3 | △ |
POQW3HM
1/4W20 P3 5P 62 15 26 33 6 4.5 7 3 3 ○
PORW04N
5/16W18 P3 5P 70 19 - 36 6.2 5 8 3 5 ○
PORW05O
3/8W16 P3 5P 75 23 - 38 7 5.5 8 3 5 ○
PORW06P
7/16W14 P3 5P 82 26 - 42 8.5 6.5 9 3 5 △
PORW07Q
| 1/2W12 | P3 | PORW08S | 5P | 88 | 26 | - | 45 | 10.5 | 8 | 11 | 3 | 5 | ○ |
| 9/16W12 | P3 | 5P | 95 | 26 | - | 48 | 12.5 | 10 | 13 | 3 | 5 | △ |
PORW09S