445 Series - Dimcogray tapered soft feel knob
| Part N° | Material | Unit system | Fastening gender | A | B | C | D | Thread length | Thread size |
| 4-445-801 | Thermoplastic | Imperial | Female | 1-1/2 | 4-3/8 | 7/8 | 4 | 1 | 1/4 |
| 4-445-802 | Thermoplastic | Imperial | Female | 1-1/2 | 4-3/8 | 7/8 | 4 | 1 | 5/16 |
| 4-445-803 | Thermoplastic | Imperial | Female | 1-1/2 | 4-3/8 | 7/8 | 4 | 1 | 3/8 |
| 4-445-805 | Thermoplastic | Imperial | Female | 1-1/2 | 4-3/8 | 7/8 | 4 | 5/8 | 5/16-18 |
| 4-445-806 | Thermoplastic | Imperial | Female | 1-1/2 | 4-3/8 | 7/8 | 4 | 5/8 | 3/8-16 |
| 4-445-807 | Thermoplastic | Imperial | Female | 1-1/2 | 4-3/8 | 7/8 | 4 | 1 | 1/2 |
| 4-445-810 | Thermoplastic | Imperial | Male | 1-1/2 | 4-3/8 | 7/8 | 4 | 5/8 | 5/16-18 |
| 4-445-811 | Thermoplastic | Imperial | Male | 1-1/2 | 4-3/8 | 7/8 | 4 | 3/4 | 3/8-16 |