Telescope accessory thumb screws screw size

Telescope accessory thumb screws uses M3 screws. Details, length ranges and sources below.

M3M3x12, M4x12confirmed

Anodized accessory thumb screws explicitly sold in M3 and M4, with M3 commonly used for smaller eyepiece/accessory threads

pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10

Replacement screws for Telescope accessory thumb screws

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Slug: telescope-accessory-thumb-screws