Knurled Thumb Nuts "A":
| Item Number | Description | A (+/-.010) | B (+/-.010) | C |
| 0800440TNA | 4-40 Thumb Nut "A" | 0.3 | 0.28 | 0.12 |
| 0800632TNA | 6-32 Thumb Nut "A" | 0.36 | 0.275 | 0.125 |
| 0800832TNA | 8-32 Thumb Nut "A" | 0.425 | 0.305 | 0.14 |
| 0801024TNA | 10-24 Thumb Nut "A" | 0.425 | 0.325 | 0.14 |
| 0801032TNA | 10-32 Thumb Nut "A" | 0.425 | 0.325 | 0.14 |
| 0825020TNA | 1/4-20 Thumb Nut "A" | 0.54 | 0.365 | 0.155 |
| 0831218TNA | 5/16-18 Thumb Nut "A" | 0.615 | 0.385 | 0.171 |
| 0837516TNA | 3/8-16 Thumb Nut "A" | 0.687 | 0.43 | 0.187 |
| 0850013TNA | 1/2-13 Thumb Nut "A" | 0.75 | 0.468 | 0.203 |
