The flat head has an 82-degree cone shape for use in countersunk holes and a flat top that fits flush with the mated surface. The Type A point has a conical tip and spaced threads. The material may be slightly magnetic. 3/8 Inch Length Metal Screws Small Parts 0824APF188 18-8 Stainless Steel Sheet Metal Screw, Plain Finish, 82 Degrees Flat Pack Of 100 Self-tapping Screws 6X3/8 PHILLIPS FLAT SELF TAPPING SCREW TYPE A FULLY THREADED 18 8 STAINLESS STEEL. TYPE A THREAD FOR SELF STARTING IN THIN (.015 - .050 INCH THICK) METAL OR RESIN-FILLED PLYWOOD. FLAT HEAD SCREWS ARE USED WHEN PROTRUSION OF THE FASTENER ABOVE THE MATING SURFACE IS UNACCEPTABLE The point style determines the type of material the screw can be used on, such as metal, wood, or plastic. 18-8 stainless steel provides good corrosion resistance and strength, and the plain surface has no finish or coating Sheet Metal Screws - Torx / Plastic / Screws / Fasteners Phillips flat head screw are flush with surface of the material to be fastened 18/8 Stainless Steel fasteners #6 x 3/8 Â These screws commonly have a sharp point that helps penetrate the material. Flat head has an 82-degree cone shape for use in countersunk holes and a flat top that fits flush with the mated surface