This U.S. industry comprises establishments primarily engaged in manufacturing metal bolts, nuts, screws, rivets, and washers, and other industrial fasteners using machines, such as headers, threaders, and nut forming machines.

Cross-References. Establishments primarily engaged in--

Manufacturing precision turned products--are classified in U.S. Industry 332721, Precision Turned Product Manufacturing; and

Manufacturing plastics fasteners--are classified in U.S. Industry 326199, All Other Plastics Product Manufacturing.