411 / | HD | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
15 | DF | HAVING SEPARATE EXPANDER MEANS {13} |
75 | DF | .~ Relatively sliding wedge surfaces {4} |
76 | ![]() | .~.~ Wedge received in transverse slot in holding device or anchor {1} |
77 | DF | .~.~.~> Double-faced wedge |