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. It is sometimes called a thumbscrew.
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. It is sometimes called a thumbscrew.