Microscope Objective Threads Chart
| BASIC DIMENSIONS AND PITCH | |||||||
|---|---|---|---|---|---|---|---|
| Designation | Basic major diameter (in) | TPI | Pitch (in) | Basic pitch diameter (in) | External design pitch diameter (in) | Basic minor diameter (in) | Included angle |
| 0.800-36 AMO / RMS | 0.8000 | 36 | 0.02778 | 0.7822 | 0.7804 | 0.7644 | 55° Whitworth |
The microscope objective thread family has one standard nominal size, 0.800-36 AMO. The external design pitch diameter includes the specified allowance; manufacturing tolerances and gaging limits are not shown.