OldDIY, this looks like a very interesting piece for me! I need the same but for a TO-92 used as temp sensor
I will use only metal M3 screws, probably A2 or A4 stainless.
Luckily, this is a brand new design so no joking around with old parts that don't work
Luckily, this is a brand new design so no joking around with old parts that don't work