I’ve seen these in base metal. It’s a two part dingus. There’s a
slot for a screwdriver on each end. From the other end of one pice
there are male threads about 1/2 to 2/3 the length. The other piece
is female threaded to the same depth. They screw together and form a
"pin" or “dowel”. Neat for hinges -right?
I’d like them in sterling or at worse nickle silver. 1 - 2 mm in
diameter and 3-9 mm in length.