Yes, threads and flat contact surfaces - see here ...
https://www.candlepowerforums.com/threads/332318
Awesome! Thank you for that!
I've only seen large batches, or extremely expensive.Do you know of a coater (AlTiN / TiN / TiCN / DLC) who will do small volumes of piecework for a reasonable price ?
Yes, thanks, that has mostly been my experience too.I've only seen large batches, or extremely expensive.