Item Specifications UPC 842176137773 Package Quantity 50 Size #6-40 x 3/8" Head Style Flat Counter Sink Angle 82 Degree Head Diameter 0.307" Head Height 0.097" Drive Style Allen Hex Key Drive Size 5/64" Inch / Metric Inch Thread Size #6-40 Thread Dia. 0.138" Thread Class Class 3A Coarse / Fine Fine Threads Per Inch (TPI) 40 Thread Coverage Full Thread Length 3/8" Thread Length Dec. 0.278" Material Alloy Steel Grade Grade 8 Finish Black Oxide Specification 1 ASME : B18.3 Tensile Strength 120,000 PSI Core Hardness Rockwell C32 Item Type Socket Screws Product Code 5150-9885 SKU 721076