These custom precision steel pins were manufactured domestically for our customer involved in water treatment product manufacturing.  1018 CRS material was used with plain finish.  The drive-less head measures .060" in height and .290" for the diameter, +/-.005".  The shoulder portion was the most critical with a diameter of .195" +/- .001" and a slight 45 deg by .02" chamfer.  Overall length of the shoulder shaft was set to .460".  Production is typically done at 5,000 pieces at a time.