[Package details:]
M5x6mm 20pcs
M5x8mm 20pcs
M5x10mm 20pcs
M5x12mm 20pcs
M5x16mm 20pcs
M5x20mm 20pcs
M5x25mm 15pcs
M5x30mm 15pcs
M5 Hex Nuts 80pcs

[About Countersunk Screws:]
The countersunk screws are mostly used in places where the surface of the parts cannot be raised after installation.
The parts to be fastened are thick and thin. The so-called thick, that is, the thickness of the parts to be fastened is larger than the head of the countersunk head screw.
Thickness, after the screw is tightened, a part of the screw thread does not enter the threaded hole.