Item Specifications UPC 842176115603 Package Quantity 5 Size 1/2"-13 x 3-1/4" Head Style Button Head Diameter 0.875" Head Height 0.265" Drive Style Allen Hex Key Drive Size 5/16" Inch / Metric Inch Thread Size 1/2"-13 Thread Dia. 0.500" Thread Class Class 3A Coarse / Fine Coarse Threads Per Inch (TPI) 13 Thread Coverage Full Thread Length 3-1/4" Thread Length Dec. 3.25" Material Stainless Steel 18-8 Finish Plain Specification 1 ASME : B18.3 Tensile Strength 70,000 PSI Core Hardness Rockwell B70 Item Type Socket Screws Product Code 5150-3070 SKU ssbscs1213314-5