This U.S. industry comprises establishments primarily engaged in manufacturing fasteners, buttons, needles, pins, and buckles (except precious metals or precious and semiprecious stones and gems). Manufacturing buttons, pins, and buckles made of precious metals or precious and semiprecious stones and gems--are classified in U.S. Industry 339911, Jewelry (except Costume) Manufacturing; Manufacturing hypodermic and suture needles--are classified in U.S. Industry 339112, Surgical and Medical Instrument Manufacturing; and Manufacturing phonograph and styli needles--are classified in U.S. Industry 334419, Other Electronic Component Manufacturing.