Machine shops, turned product, and screw, nut and bolt manufacturing

North American Industry Classification System code (NAICS): 3327

This industry group comprises establishments primarily engaged in operating machine shops, which use machine tools, such as lathes and automatic screw machines, for turning, boring, threading or otherwise shaping metal, to manufacture parts, other than complete machines, for the trade. Shops that set up to do production runs of industrial fasteners, such as bolts, nuts and screws, are included.