Per Anycubic Mono-X/Mono-X 6K/M3 Plus/M3 Max Billet Set (argento)
Anycubic Mono X. Anycubic Mono X 6K. Anycubic M3 Plus. Anycubic M3 Max. They are larger for easier turning while still fitting inside the cover. The stainless threads make turning smoother and easier than zinc coated screws.