| 29 / | HD | METAL WORKING |
| 592 | DF | METHOD OF MECHANICAL MANUFACTURE {54} |
| 428 | DF | .~ Assembling or joining {21} |
| 525.01 | ![]() | .~.~ By applying separate fastener {5} |
| 525.02 | DF | .~.~.~> Multipart cooperating fastener (e.g., bolt and nut) {2} |
| 525.05 | DF | .~.~.~> Fastener deformed after application {1} |
| 525.08 | DF | .~.~.~> Nonresilient fastener {1} |
| 525.11 | DF | .~.~.~> Threaded fastener {1} |
| 525.13 | DF | .~.~.~> With supplemental joining {2} |