Question: How can you clear rust off a screw or nut head?
Options:
Pour Cocoa powder on it, let sit a few min, then clean off, repeat until rust removed from grooves of the head of the screw.
Pour Coca Cola on it, let sit a few min, then clean off, repeat until rust removed from grooves of the head of the screw.
Answer: Pour Coca Cola on it, let sit a few min, then clean off, repeat until rust removed from grooves of the head of the screw.