445 Series - Dimcogray tapered handle knob
| Part N° | Material | Unit system | Fastening gender | A | B | C | D | Thread length | Thread size |
| 4-445-001 | Thermoplastic | Imperial | Female | 1-1/2 | 4-3/8 | 7/8 | 4 | 7/16 | 5/16-18 |
| 4-445-002 | Thermoplastic | Imperial | Female | 1-1/2 | 4-3/8 | 7/8 | 4 | 1-1/2 | 5/16-18 |
| 4-445-004 | Thermoplastic | Imperial | Male | 1-1/2 | 4-3/8 | 7/8 | 4 | 3/4 | 3/8-16 |
| 4-445-006 | Thermoplastic | Imperial | Female | 1-1/2 | 4-3/8 | 7/8 | 4 | 2-1/8 | 1/2-13 |