Item Specifications UPC 842176103860 Package Quantity 5 Size 1/2"-20 x 2-1/2" Head Style Socket Cap Head Diameter 3/4" Head Height 0.500" Drive Style Allen Hex Key Drive Size 3/8" Inch / Metric Inch Thread Size 1/2"-20 Thread Dia. 0.500" Thread Class Class 3A Coarse / Fine Fine Threads Per Inch (TPI) 20 Thread Coverage Partial Thread Length 2-1/2" Thread Length Dec. 1.75" Material Stainless Steel 18-8 Finish Plain Tensile Strength 70,000 PSI Core Hardness Rockwell B70 Item Type Socket Screws Product Code 5150-26735 SKU 3SSCS98F208