Tapping Sheet Metal Screw Flat Head 18-8 Stainless Steel Size #4 Length 5/8 In Drive Type Phillips Driver Size #1 Head Diameter 0.225 In Head Height 0.067 In Head Angle 82 Deg Plain Finish Meets/Exceeds ANSI/ASME B18.6.4 and SAE J933 and IFI Package 100