Industry: 3452—Bolts, Nuts, Screws, Rivets, and Washers
Establishments primarily engaged in manufacturing metal bolts, nuts, screws, rivets, washers, formed and threaded wire goods, and special industrial fasteners. Rolling mills engaged in manufacturing similar products are classified in Major Group 33; establishments primarily engaged in manufacturing screw machine products are classified in Industry 3451; and those manufacturing plastics fasteners are classified in Industry 3089.
| Bolts, metal | Screw eyes, metal |
| Cotter pins, metal | Screw hooks |
| Dowel pins, metal | Screws, metal |
| Gate hooks | Spring pins, metal |
| Lock washers | Spring washers, metal |
| Machine keys | Toggle bolts, metal |
| Nuts, metal | Washers, metal |
| Rivets, metal | Wood screws, metal |
| Codes |
Titles | Total Marketable US Businesses |
| 34520000 | Bolts, nuts, rivets, and washers | 299 |
| 34520100 | Pins | 137 |
| 34520101 | Cotter pins, metal | 2 |
| 34520102 | Dowel pins, metal | 6 |
| 34520103 | Spring pins, metal | 3 |
| 34520200 | Washers | 81 |
| 34520201 | Lock washers | 1 |
| 34520202 | Spring washers, metal | 1 |
| 34520203 | Washers, metal | 15 |
| 34529901 | Bolts, metal | 136 |
| 34529902 | Gate hooks | 4 |
| 34529903 | Machine keys | 5 |
| 34529904 | Nuts, metal | 43 |
| 34529905 | Rivets, metal | 15 |
| 34529906 | Screw eyes and hooks | 3 |
| 34529907 | Screws, metal | 97 |
| 34529908 | Wood screws | 2 |
