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} |
87 | DF | .~ Elongate member extending between and interlocking plural bolts or nuts {1} |
88 | .~.~ Member engages inwardly facing surface and a flat side of bolt head or nut |