Item Specifications UPC 842176133799 Package Quantity 25 Size 5/16"-18 x 1" Head Style Round Head Diameter 0.590" Head Height 0.216" Drive Style Phillips Drive Size #3 Inch / Metric Inch Thread Size 5/16"-18 Thread Dia. 0.3125" Thread Class Class 2A Coarse / Fine Coarse Threads Per Inch (TPI) 18 Thread Coverage Full Thread Length 1" Thread Length Dec. 1" Material Stainless Steel 18-8 Finish Plain Specification 1 ASME : B18.6.3 Tensile Strength 100,000 PSI Core Hardness Rockwell B100 Item Type Machine Screws Product Code 5150-21725 SKU 3SSMPR95C100