411 / | HD | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
81 | DF | THREADED FASTENER LOCKED TO A DISCREET STRUCTURE (E.G., PLATE, RAIL, WHEEL) {13} |
103 | DF | .~ Multipart nut assembly with one member attached to structure or substructure {8} |
104 | .~.~ Through-passage or recess having laterally extending entry for inserting member and nut |