| Type | I.C. | Pitch TPI | Ordering Code RH | Ordering Code LH | L | X | Y |
|---|---|---|---|---|---|---|---|
| External Whitworth | 3/8" | 28 | 16ER28W | 16EL28W | 16.5 | 0.8 | 0.8 |
| External Whitworth | 3/8" | 26 | 16ER26W | 16EL26W | 16.5 | 0.8 | 0.8 |
| External Whitworth | 3/8" | 24 | 16ER24W | 16EL24W | 16.5 | 0.8 | 0.8 |
| External Whitworth | 3/8" | 22 | 16ER22W | 16EL22W | 16.5 | 0.8 | 0.8 |
| External Whitworth | 3/8" | 20 | 16ER20W | 16EL20W | 16.5 | 0.8 | 0.8 |
| External Whitworth | 3/8" | 19 | 16ER19W | 16EL19W | 16.5 | 0.8 | 0.8 |
| External Whitworth | 3/8" | 18 | 16ER18W | 16EL18W | 16.5 | 0.8 | 0.8 |
| External Whitworth | 3/8" | 16 | 16ER16W | 16EL16W | 16.5 | 1.2 | 1.5 |
| External Whitworth | 3/8" | 14 | 16ER14W | 16EL14W | 16.5 | 1.2 | 1.5 |
| External Whitworth | 3/8" | 12 | 16ER12W | 16EL12W | 16.5 | 1.2 | 1.5 |
| External Whitworth | 3/8" | 11 | 16ER11W | 16EL11W | 16.5 | 1.2 | 1.5 |
| External Whitworth | 3/8" | 10 | 16ER10W | 16EL10W | 16.5 | 1.2 | 1.5 |
| External Whitworth | 3/8" | 9 | 16ER9W | 16EL9W | 16.5 | 1.2 | 1.5 |
| External Whitworth | 3/8" | 8 | 16ER8W | 16EL8W | 16.5 | 1.2 | 1.5 |
| External Whitworth | 1/2" | 7 | 22ER7W | 22EL7W | 22 | 1.8 | 2.5 |
| External Whitworth | 1/2" | 6 | 22ER6W | 22EL6W | 22 | 1.8 | 2.5 |
| External Whitworth | 1/2" | 5 | 22ER5W | 22EL5W | 22 | 1.8 | 2.5 |
| External Whitworth | 5/8" | 4.5 | 27ER4.5W | 27EL4.5W | 27.5 | 2.2 | 3.2 |
| External Whitworth | 5/8" | 4 | 27ER4W | 27EL4W | 27.5 | 2.2 | 3.2 |
| Internal Whitworth | 1/4" | 19 | 11NR19W | 11NL19W | 11 | 0.8 | 0.8 |
| Internal Whitworth | 1/4" | 14 | 11NR14W | 11NL14W | 11 | 0.8 | 0.8 |
| Internal Whitworth | 3/8" | 28 | 16NR28W | 16NL28W | 16.5 | 0.8 | 0.8 |
| Internal Whitworth | 3/8" | 26 | 16NR26W | 16NL26W | 16.5 | 0.8 | 0.8 |
| Internal Whitworth | 3/8" | 24 | 16NR24W | 16NL24W | 16.5 | 0.8 | 0.8 |
| Internal Whitworth | 3/8" | 22 | 16NR22W | 16NL22W | 16.5 | 0.8 | 0.8 |
| Internal Whitworth | 3/8" | 20 | 16NR20W | 16NL20W | 16.5 | 0.8 | 0.8 |
| Internal Whitworth | 3/8" | 19 | 16NR19W | 16NL19W | 16.5 | 0.8 | 0.8 |
| Internal Whitworth | 3/8" | 18 | 16NR18W | 16NL18W | 16.5 | 0.8 | 0.8 |
| Internal Whitworth | 3/8" | 16 | 16NR16W | 16NL16W | 16.5 | 1.2 | 1.5 |
| Internal Whitworth | 3/8" | 14 | 16NR14W | 16NL14W | 16.5 | 1.2 | 1.5 |
| Internal Whitworth | 3/8" | 12 | 16NR12W | 16NL12W | 16.5 | 1.2 | 1.5 |
| Internal Whitworth | 3/8" | 11 | 16NR11W | 16NL11W | 16.5 | 1.2 | 1.5 |
| Internal Whitworth | 3/8" | 10 | 16NR10W | 16NL10W | 16.5 | 1.2 | 1.5 |
| Internal Whitworth | 3/8" | 9 | 16NR9W | 16NL9W | 16.5 | 1.2 | 1.5 |
| Internal Whitworth | 3/8" | 8 | 16NR8W | 16NL8W | 16.5 | 1.2 | 1.5 |
| Internal Whitworth | 1/2" | 7 | 22NR7W | 22NL7W | 22 | 1.8 | 2.5 |
| Internal Whitworth | 1/2" | 6 | 22NR6W | 22NL6W | 22 | 1.8 | 2.5 |
| Internal Whitworth | 1/2" | 5 | 22NR5W | 22NL5W | 22 | 1.8 | 2.5 |
| Internal Whitworth | 5/8" | 4.5 | 27NR4.5W | 27NL4.5W | 27.5 | 2.2 | 3.2 |
| Internal Whitworth | 5/8" | 4 | 27NR4W | 27NL4W | 27.5 | 2.2 | 3.2 |
