It's called the law of the instrument. The concept is said to have originated with philosopher Abraham Kaplan, who said “I call it the law of the instrument, and it may be formulated as follows: Give a small boy a hammer, and he will find that everything he encounters needs pounding.”
The more popular version comes from Abraham Maslow's The Psychology of Science (1966) and is typically presented as "If all you have is a hammer, every problem looks like a nail." READ MORE