Item Specifications UPC 842176138213 Package Quantity 50 Size #4-48 x 3/8" Head Style Flat Counter Sink Angle 82 Degree Head Diameter 0.225" Head Height 0.083" Drive Style Allen Hex Key Drive Size 1/16" Inch / Metric Inch Thread Size #4-48 Thread Dia. 0.112" Thread Class Class 3A Coarse / Fine Fine Threads Per Inch (TPI) 48 Thread Coverage Full Thread Length 3/8" Thread Length Dec. 0.292" 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 5150-9670 SKU 721042