... : High quality low carbon steel Q195 or Q215 or Q2352.Finish : good polished, flat head, diamond point, hot-galvanized/electro-galvanized ... produces various nails, including the steel collated nails, headless nails, steel sheet nails, concrete nails, screwed nails, twisted nails, square boat nail, corrugated nails, felt nails, drywall nails, drilling nails, self ...