Machine Screw Head Type Flat Material 18-8 Stainless Steel Finish Plain Drive Phillips Thread Size #2-56 Fastener Length 5/16 in Head Width 0.162 in Head Height 0.162 in Drive Size #1 Tensile Strength 60 000 psi Dimensional Standards ASME B18.6.3 Pack Size Small Minimum Thread Length Not Applicable Type Standard Machine Screw Washer Outside Diameter Not Applicable Washer Thickness Not Applicable Maximum Head Width 0.162 in Minimum Head Width 0.144 in