Primary and Secondary Mirror Collimation Screws and Springs
for Meade LightBridge, GSO, Zhumell, Hardin Optical 10" & 12" Dobs
and Zhumell 8" Dob


Replace your factory collimation screws with these thumbscrews for quick,
no-tools adjustment.

The Primary mirror replacements have all six screws, three collimation
and three lock screws. The secondary mirror replacements have three
thumbscrews.

Replacement primary mirror springs are firmer than the factory originals
for more stable collimation, and are stainless steel.


Click on images to enlarge

Primary Thumbscrews:


Secondary Thumbscrews:



$51.00 - #CSK3 - LightBridge 10 & 12" Primary and Secondary Collimation Thumbscrew Sets and Primary Springs
$39.00 - #CSK4 - LightBridge 10 & 12" Primary Collimation Thumbscrew Set and Primary Springs
$36.00 - #CSK2 - LightBridge 10 & 12" Primary and Secondary Collimation Thumbscrew Sets
$26.00 - #CSB2 - LightBridge 10 & 12" Primary Mirror Collimation Thumbscrew Set
$16.00 - #CSD3 - LightBridge 10, 12 & 16" Secondary Mirror Collimation Thumbscrew Set
$16.00 - #CSS2 - LightBridge 10 & 12" Primary Mirror Replacement Spring Set, Stainless Steel


Compare! - - - - - Our prices include shipping in the USA!

Ordering Information



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