Small Parts 0204APU188 18-8 Stainless Steel Sheet Metal Screw, Plain Finish, Undercut 82 degrees Flat Head, Phillips Drive, Type A, #2 Thread Size, 1/4" Length (Pack of 100)
Type A point has a conical tip and spaced threads that are suitable for forming threads in holes drilled 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
Undercut flat head has a flat top with a 82-degree cone-shaped bearing surface and is undercut for use in shallow countersunk holes
Phillips drive has an x-shaped slot that accepts a Phillips driver and is designed to prevent over-tightening