Phillips Drive Pan Head Screws SS PK50 Head Type Pan Material Stainless Steel Finish Plain Drive Phillips Thread Size #4-40 Fastener Length 1 1/2 in Head Width 0.219 in Head Height 0.08 in Drive Size #1 Tensile Strength 70 000 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 Not Applicable