187 Series - Dimcogray oval tapered knob knob
| Part N° | Material | Unit system | Fastening gender | A | B | C | Thread length | Thread size |
| 1-187-002 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 7/16 | 5/16-18 |
| 1-187-003 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 7/16 | 5/16-24 |
| 1-187-004 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 1/2 | 3/8-16 |
| 1-187-006 | Phenolic | Imperial | Male | 1-1/8 | 1-7/16 | 1/2 | 9/32 | 1/4-20 |
| 1-187-007 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 1/2 | 3/8-16 |
| 1-187-008 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 1/2 | 7/16-20 |
| 1-187-013 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 1/2 | 1/4-20 |
| 1-187-024 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 7/16 | 1/4-20 |
| 1-187-027 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 7/16 | 5/16-18 |
| 1-187-034 | Phenolic | Imperial | Female | 1-1/8 | 1-716 | 1/2 | 1/2 | 3/8-16 |
| 1-187-045 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 7/16 | 5/16-18 |
| 1-187-047 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 1/2 | 3/8-24 |
| 1-187-051 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 1/2 | 7/16-14 |
| 1-187-053 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 5/8 | |
| 1-187-055 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 5/16 | 10-24 |
| 1-187-056 | Phenolic | Imperial | Female | 1-1/8 | 1-7/16 | 1/2 | 5/16 | 10-32 |