Question

What do we call the below system of coil and screw. Write any two uses of it.

Answer 1

$\huge{\underline{\underline{\boxed{\sf{\purple{ ✠Aɴʂᴡᴇʀ᭄ }}}}}}$

Answer 2

Answer:

$\huge{\underline{\underline{\boxed{\sf{\purple{ ✠Aɴʂᴡᴇʀ᭄ }}}}}}</p><p>$