He mentions it is the center post for an RSST. A quick Google search will find one for you.
Does anyone know where I can get the screw that Ninja is using in his Ninja Vapes How-To: Easy Micro coils (and the Diver micro-RBA) video?
Went to home depot and was told that they don't carry that size...
Currently using the round end of a tiny drill bit to make my coils.
Thanks - !