Item Specifications UPC 842176136127 Package Quantity 5 Size 3/8"-16 x 3-1/4" Head Style Flat Counter Sink Angle 82 Degree Head Diameter 0.781" Head Height 0.234" Drive Style Allen Hex Key Drive Size 7/32" Inch / Metric Inch Thread Size 3/8"-16 Thread Dia. 0.375" Thread Class Class 3A Coarse / Fine Coarse Threads Per Inch (TPI) 16 Thread Coverage Full Thread Length 3-1/4" Thread Length Dec. 3.016" 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 5150-10685 SKU 721141