The small ones found on audio mixers , especially for the small slplined shaft ones of about 4.6mm. A nice random selection would be nice , to match up for missing ones. Just a brand name or generic term for them would help googling.
OT: Anyone tried the son of Google - Cuil.com.? Beautiful black text on black background for the searchbox is what I get on Firefox.
-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on