Item Specifications UPC 842176176222 Package Quantity 50 Size #4-40 x 1/2" Head Style Flat Counter Sink Angle 82 Degree Head Diameter 0.212" Head Height 0.047" Drive Style Phillips Drive Size #1 Inch / Metric Inch Thread Size #4-40 Thread Dia. 0.112" Thread Class Class 2A Coarse / Fine Coarse Threads Per Inch (TPI) 40 Thread Coverage Full Thread Length 1/2" Thread Length Dec. 0.5" Material Brass Finish Plain Specification 1 ASME : B18.6.3 Tensile Strength 50,000 PSI Core Hardness Rockwell B50 Item Type Machine Screws Product Code 5150-16740 SKU 3RSMPF04C008