Question: What are the parts of a buckle called?
Disambiguated questions and answers: question: What are the four parts of a buckle called?
What is the part of a buckle called that is the most visible?
What is the part of a buckle called that is the plate?
What is the part of a buckle called that holds the chape and prong to the frame?
What is the part of a buckle called that is also called the pin?
answer: frame, chape, bar, and prong
frame
chape
bar
prong
Natural Questions answer: frame
chape
bar
prong (from the Wikipedia article "Buckle")