This U.S. Census Bureau NAICS-based industry comprises establishments primarily engaged in manufacturing metal hardware, such as metal hinges, metal handles, keys, and locks except coin-operated. Excluded are metal pulleys and block and tackle.

Cross-References. Establishments primarily engaged in--

• Manufacturing bolts, nuts, screws, rivets, washers, hose clamps, and turn-buckles--are classified in U.S. Industry 332722, Bolt, Nut, Screw, Rivet, and Washer Manufacturing;
• Manufacturing nails and spikes from wire drawn elsewhere--are classified in U.S. Census Bureau NAICS-based industry 3326181, Other Fabricated Wire Product Manufacturing, except Grocery Carts;
• Manufacturing coin-operated locking mechanisms--are classified in U.S. Census Bureau NAICS-based industry 3333111, Automatic Vending Machine Manufacturing, except Time Switches and Currency Handling Machines;
• Manufacturing pole line and transmission hardware--are classified in U. S. Industry 335932, Noncurrent-Carrying Wiring Device Manufacturing;
• Manufacturing metal furniture parts (except hardware)--are classified in Industry 337215, Showcase, Partition, Shelving, and Locker Manufacturing;
• Manufacturing handtools--are classified in U.S. Census Bureau NAICS-based industry 3322121, Non-Automotive Screw Jack Manufacturing;
• Manufacturing cutlery--are classified in U.S. Industry 332211, Cutlery and Flatware (except Precious) Manufacturing;
• Manufacturing luggage and utility racks--are classified in U.S. Industry 336399, All Other Motor Vehicle Parts Manufacturing;
• Manufacturing time locks--are classified in U.S. Industry 334518, Watch, Clock, and Part Manufacturing;
• Manufacturing metal pulley and block and tackle--are classified in U.S. Census Bureau NAICS-based industry 3325103, Metal Pulley and Block and Tackle Manufacturing; and
• Manufacturing fire hose nozzles and couplings--are classified in U.S. Industry 332919, Other Metal Valve and Pipe Fitting Manufacturng.