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Homework answers / question archive / What are washers, nuts, and bolts made of? a
What are washers, nuts, and bolts made of?
a. aluminum
b. zinc
c. iron
d. nickel
The nuts, washer, and bolts must have the following properties:
Out of all the answer options (aluminum, zinc, iron, and nickel), only aluminum has all the required properties. Therefore, we can safely conclude that nuts, bolts, and washers are made of aluminum and its alloys.
Hence, the correct option is (a) aluminum.