277 Series - Dimcogray tapered knob knob
| Part N° | Material | Unit system | Fastening gender | A | B | C | Thread length | Thread size |
| 1-277-010 | Phenolic | Imperial | Female | 1 | 1-5/8 | 1/2 | 1/2 | 3/8-16 |
| 1-277-011 | Phenolic | Imperial | Female | 1 | 1-5/8 | 1/2 | 7/16 | 5/16-18 |
| 1-277-012 | Phenolic | Imperial | Female | 1 | 1-5/8 | 1/2 | 7/16 | 1/4-20 |
| 1-277-013 | Phenolic | Imperial | Female | 1 | 1-5/8 | 1/2 | 5/16 | 10-32 |
| 1-277-017 | Phenolic | Imperial | Female | 1 | 1-5/8 | 1/2 | 1/2 | 3/8-24 |
| 1-277-019 | Phenolic | Imperial | Female | 1 | 1-5/8 | 1/2 | 7/16 | 5/16-18 |
| 1-277-020 | Phenolic | Imperial | Female | 1 | 1-5/8 | 1/2 | 7/16 | 1/4-20 |