Nut (hardware)
bolt (screw) and nut
Bolt and nut,
Hexagon(al) nuts
Screws, nuts and washers
machine screw (bolt) and nut
Acorn nutDeutsch: Hutmutter
some nuts, different forms,
Weld nut (for welding it to another object)
Wing Nut
a (open end) wrench and a nut
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