Type AB point has a conical tip and fine spaced threads that are suitable for forming threads in thin metals between 0.015" and 0.050" thick and resin impregnated plywood
18-8 stainless steel provides good corrosion resistance and strength, and the plain surface has no finish or coating
Hex washer head has six flat sides that a wrench can grip from the side in low-profile applications and has a flange for additional bearing surface to distribute the force over the material being fastened
Hex drive tightens from the side with a wrench, enabling use when there is no space above for a driver