1) Hand-tightened fastener 2) Hand-tightened hardware 3) Turnable fastener 
[hardware] A wingnut or wing nut is a type of nut with two large metal `wings`, one on each side, so it can be easily tightened and loosened by hand without tools. A similar fastener with a male thread is known as a wingbolt. File:Wingnut-hardware.jpg|Three wingnuts File:Bicycle wing nuts.jpg|Bicycle wingnuts File:2006-07-06 splash 10.jpg|T...[politics] `Wingnut` (sometimes `wing-nut`) is an American political term used as a slur referring to a person who holds extreme, and often irrational, political views usually with a religious overtone. According to Merriam-Webster, it is `a mentally deranged person` or `one who advocates extreme measures or changes : radical.` In American ...
[n] - any tree of the genus Pterocarya
Derogatory term for a person on the political right