406 Series - Dimcogray 3-prong pronged knob
| Part N° | Material | Unit system | Fastening gender | A | B | C | D | Thread length | Thread size |
| 4-406-001 | Thermoplastic | Imperial | Female | 1-1/2 | 7/8 | 1/2 | 3/8 | 7/16 | 1/4-20 |
| 4-406-003 | Thermoplastic | Imperial | Male | 1-1/2 | 7/8 | 1/2 | 3/8 | 1/2 | 1/4-20 |
| 4-406-012 | Thermoplastic | Imperial | Male | 1-1/2 | 7/8 | 1/2 | 3/8 | 1 | 1/4-20 |
| 4-406-013 | Thermoplastic | Imperial | Male | 1-1/2 | 7/8 | 1/2 | 3/8 | 3/4 | 5/16-18 |
| 4-406-016 | Thermoplastic | Imperial | Male | 1-1/2 | 7/8 | 1/2 | 3/8 | 9/16 | 1/4-20 |
| 4-406-017 | Thermoplastic | Imperial | Male | 1-1/2 | 7/8 | 1/2 | 3/8 | 3/4 | 10-24 |
| 4-406-018 | Thermoplastic | Imperial | Male | 1-1/2 | 7/8 | 1/2 | 3/8 | 1/2 | 10-24 |