Index plungers are used for indexing bores.
Simple handling, e.g. when using safety gloves, with higher pull release.
Types with / without lock have the same building height.
Due to a thread recess the index plungers can be completely screwed in.
Your selection resulted in 12 hits
Knob not removable.
Lock nuts have to be purchased separately.
The screw length can be adapted by distance collars for index plungers (EH 22120.).