These nails are well manufactured and safely packaged by Senco.  However, they are not the correct size for my Hitachi 15-Guage Angled Finish Nailer if you examine them carefully with a Mitutoyo caliper.  According to the directions, these are out of spec.  So I don't like them.  I don't like how Amazon recommended that I buy them with my Hitachi nailer, and I don't see the good in these thin little nails with their tiny head.