This recall concerns loose nuts on the wiper blades, which can cause the wipers to fail, especially if there is a heavy build up of snow.
The loose nut had interrupted the power to the seating platform.
In the end, they got away with one pit stop to tighten a loose nut on the adjustable skates.
Also tighten loose nuts, bolts and other fasteners.
Similarly, typewriter repair people used to refer to "a loose nut behind the keyboard" or a "defective keyboard controller."
You're just the loose nut on the stick.
The gentleman at the garage presented a bill for five shillings and made a few vague remarks about loose nuts.
As a Native Californian, I am justly proud of our high standards (though we do have a few loose nuts).
The old joke used to be that America was a vast plain tilted leftward, so all the loose nuts rolled to California.
Every loose nut, every bolt, every screwdriver.