The technical term for those fasteners is "cam lock fastener". They were invented specifically for flat pack furniture (I believe this 1988 patent [1] is the or

The technical term for those fasteners is "cam lock fastener". They were invented specifically for flat pack furniture (I believe this 1988 patent [1] is the original), and there's not really any point to use them for anything else, since they're really inferior to most types of joints. [1] https://patents.google.com/patent/US4886326A/en https://patents.google.com/patent/US4886326A/en