| 411 / | HD | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| 924 | DF | COUPLED NUT AND BOLT {13} |
| 929 | DF | .~ Thread lock {12} |
| 931 | DF | .~.~ Superposed nuts {1} |
| 932 | DF | .~.~.~ Oppositely threaded {1} |
| 933 | DF | .~.~.~.~ Key or pawl locked {1} |
| 934 | ![]() | .~.~.~.~.~ Side locked |