Item Specifications UPC 842176124001 Package Quantity 100 Size #4-40 x 3/8" Head Style Button Head Diameter 0.213" Head Height 0.059" Drive Style Allen Hex Key Drive Size 1/16" Inch / Metric Inch Thread Size #4-40 Thread Dia. 0.112" Thread Class Class 3A Coarse / Fine Coarse Threads Per Inch (TPI) 40 Thread Coverage Full Thread Length 3/8" Thread Length Dec. 0.375" Material Alloy Steel Grade Grade 8 Finish Black Oxide Specification 1 ASME : B18.3 Specification 2 ASTM : F835 Tensile Strength 120,000 PSI Core Hardness Rockwell C37 Item Type Socket Screws Product Code 5150-3695 SKU 201018