Review on Stainless Steel BCP Support Elements for Improved SEO by Quinton Wonsley

These pins have a tolerance of 0.01mm in diameter and 0.1mm in length, which is good. They interact very weakly with a magnetic field, indicating that they are "low-carbon" or "soft" steel. You didn't specify the steel grade and I assumed it would be plain carbon steel with a higher iron content. They don't have the "magnetic" properties I was looking for, but they should work fine as dowels.