440 Series - Dimcogray wingnut knob
| Part N° | Material | Unit system | Fastening gender | A | B | C | D | Thread length | Thread size |
| 4-440-004 | Thermoplastic | Imperial | Female | 2-1/2 | 1-3/64 | 7/8 | 3/8 | 7/16 | 5/16-18 |
| 4-440-005 | Thermoplastic | Imperial | Male | 2-1/2 | 1-3/64 | 7/8 | 3/8 | 3/4 | 1/2-13 |
| 4-440-007 | Thermoplastic | Imperial | Male | 2-1/2 | 1-3/64 | 7/8 | 3/8 | 3/4 | 3/8-16 |
| 4-440-601 | Thermoplastic | Metric | Male | 2-1/2 | 1-3/64 | 7/8 | 3/8 | 30 | M8-1.25 |