What are the sizes of collimation screws on current-production Celestron Schmidt-Cassegrain telescopes (SCTs)?

 

Celestron SCT Thread specifications Length
C5

M3 x 0.5

 8 mm

C6

M3 x 0.5

12 mm

C8

M3 x 0.5

12 mm

C9.25

M3 x 0.5

10 mm

C11

M3 x 0.5

12 mm

C14

M3 x 0.5

18 mm

Updated 12/27/13