T-SM40RR - M40.5 x 0.5 Retaining Ring
T-SM40RR - M40.5 x 0.5 Retaining Ring
- Standard Retaining Rings for Optics Ranging from Ø39 mm to Ø2"
- Thread M40.5 x 0.5
- Thickness 0.10" (2.5 mm)
- Compatible Spanner Wrench T-SPW801
- Clear Aperture Ø1.47" (Ø37.5 mm)
| M40.5 x 0.5 Threading | |||
|---|---|---|---|
| Internal Thread | External Thread | ||
| Min Major Diameter | 40.500 mm | Max Major Diameter | 40.480 mm |
| Min Pitch Diameter | 40.175 mm | Min Major Diameter | 40.371 mm |
| Max Pitch Diameter | 40.306 mm | Max Pitch Diameter | 40.155 mm |
| Min Minor Diameter (and 83.3% of Thread) |
39.959 mm | Min Pitch Diameter | 40.056 mm |
| Max Minor Diameter (and 64.9% of Thread) |
40.094 mm | Max Minor Diameter | 39.938 mm |