The term PIN PART is composed of three words: HEAD (4 letters), CLASP (5 letters), and DIGIT (5 letters). The word HEAD refers to the top part of a pin, which is usually made of metal and is used to secure the pin in place. The word CLASP is used to describe the mechanism that holds the pin in place, such as a spring or a latch. Finally, the word DIGIT is used to refer to the number or code that is printed on the pin, which is used to identify the pin and its owner. Together, these three words form the term PIN PART, which is used to describe the components of a pin.