Size of the Screws and Length
| Lens changing screw | SC | 2-56x3.9mm | JULIET X-Squared Penny XX |
| R1-SC | 2-56x6.95mm | Romeo1 | |
| Temple screw | TSC | 2-56x5.8mm | Juliet X-Squared Mars XX Romeo1 |
| Wrench | WR | HLS 1.27mm | Romeo2-Lens part X-Squared-Nose bridge |
Washer | WS | 0.3mm | Juliet Mars Romeo1 Romeo2 XX X-Squared |
| Nose bridge flex coupler | NBFC | - | Juliet Mars Romeo2 XX X-Squared Penny |