|Elliott Sound Products||PCB Pins|
It seems that these are not readily available, so now they are. They come in a pack of 50 (feel free to count them in the picture below :-), and are suitable for the 1mm holes used in all ESP boards for just this purpose.
Note: The pins are only available with a PCB purchase - they are not sold separately
|Size (mm)||1(dia) x 12 (long)|