420 Series - Dimcogray ergonomic tapered handle knob
| Part N° | Material | Unit system | Fastening gender | A | B | C | Thread length | Thread size |
| 4-420-001 | Thermoplastic | Imperial | Female | 1-27/64 | 3-3/4 | 7/8 | 7/8 | 1/4-20 |
| 4-420-002 | Thermoplastic | Imperial | Female | 1-27/64 | 3-3/4 | 7/8 | 5/8 | 5/16-18 |
| 4-420-003 | Thermoplastic | Imperial | Female | 1-27/64 | 3-3/4 | 7/8 | 5/8 | 3/8-16 |
| 4-420-006 | Thermoplastic | Imperial | Female | 1-27/64 | 3-3/4 | 7/8 | 3/4 | 1/4 |
| 4-420-007 | Thermoplastic | Imperial | Female | 1-27/64 | 3-3/4 | 7/8 | 1-1/8 | 3/8 |
| 4-420-008 | Thermoplastic | Imperial | Female | 1-27/64 | 3-3/4 | 7/8 | 3/4 | 5/16 |