(based on use in commerce and Section 44) Small items of metal hardware, namely, rivet bushings, press-in nuts, press-in studs, spacer bushings, threaded inserts, self-tapping threaded inserts, threaded studs, expansion inserts, studs, nuts, and inserts; (based on Section 44) metal grooved pins for metal, wood, and plastics, for cold embedding, for sheet metal, for hot or ultrasound embedding, for screwing into an internal thread, and for riveting; metal grooved studs for metal, wood, and plastics, for cold embedding, for sheet metal, for hot or ultrasound embedding, for screwing into an internal thread, and for riveting; metal inserts for metal, wood, and plastics, for cold embedding, for sheet metal, for hot or ultrasound embedding, for screwing into an internal thread, and for riveting; and metal expanding inserts for metal, wood, and plastics, for cold embedding, for sheet metal, for hot or ultrasound embedding, for screwing into an internal thread, and for riveting