Correct option is A
A
cap nut (also known as an
acorn nut) is specifically designed to
protect the exposed threads of a bolt from damage, dirt, and corrosion. It has a
closed end that covers the tip of the bolt, preventing it from getting
deformed or damaged due to impact.
Cap nuts are commonly used in
automobiles, furniture, and machinery where aesthetics and safety are important. They also help prevent
injuries caused by exposed sharp threads.
·
Cap nuts are often made of brass, stainless steel, or chrome-plated steel for corrosion resistance.
·
They provide a finished look in
automotive, furniture, and decorative applications.
·
Used in environments where exposed threads may corrode or get damaged.
·
Castle and slotted nuts are locking nuts, used in applications like axles and steering mechanisms.
