To calculate mechanical advantage over standard hex nuts, the following formula is used:

It was tooled to mill the six sides of a hex nut that was mounted in a six-way indexing fixture.

They are commonly available with a wingnut, or with a simple hex nut so that they may be spaced more closely together.

The truss rod tension is usually controlled using an adjustment bolt (a hex nut or allen key).

A hex nut clanged off his helmet.

The shrink wrap displayed the hex nut and prevented it from falling out before the book was purchased.

By holding the balloon we can feel the vibrations caused by the hex nut that is making the sound.

The font is six-sided and encrusted with saints, like a gigantic hex nut forged for some obscure yet holy purpose, but its most impressive feature is its portability.

It looks as though you could lift the whole assembly if the hex nuts were removed.

The male connector is hand-tightened (though versions with a hex nut are also available) and has an air gap between the center and outer conductors.