Siskiyou’ EAS series adjustment screws come in several different travel versions and thread pitches.  They have hard ball tips for exceptionally smooth adjustment.  The travel and threads per inch is listed on the left of this page.  Models with "H" at the end of the model number have a 1/8 hex wrench drive.

   EAS127 adjustment screws produce 200µm axial movement with each revolution of the screw.