332510  Hardware Manufacturing 

This U.S. industry comprises establishments primarily engaged in
manufacturing metal hardware, such as metal hinges, metal handles,
keys, and locks (except coin-operated, time locks).

The data published with NAICS code 332510 include the following
SIC industries:

3429 Hardware, n.e.c. (pt)
3499 Fabricated metal products, n.e.c. (pt)