Originally Posted by
repechage
In the model of how Tullio did early prototyping no doubt.
I would consider using a stainless steel set screw, Allen head or slot, maybe a drop of loctite blue if necessary.
I do have m3 setscrews in stainless, but I made a brass screw as if it broke or got stuck from corrosion it would be easier to get out.
I do also like the look of brass.
Were I to make another it would have more metal in the threaded part so it could have a slot for a bit of poly to stop it changing.