| 411 / | HD | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| 337 | DF | HEADED FASTENER ELEMENT WITH NUT, WASHER, SECURING MEANS OR CAP {12} |
| 366.1 | | .~ Headed bolt or screw with threads and complementary nut {4} |
| 367 | DF | .~.~> Having stay bolt spacer sleeve |
| 368 | DF | .~.~> Having washer {1} |
| 366.2 | DD | .~.~> Flush mount or low profile |
| 366.3 | DD | .~.~> Threads having a specific pitch or angle |