Item Specifications UPC 842176135090 Package Quantity 25 Size 5/16"-18 x 1" Head Style Flat Counter Sink Angle 82 Degree Head Diameter 0.597" Head Height 0.191" Drive Style Slotted 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. 0.809" Material Stainless Steel 18-8 Finish Plain Specification 1 ASME : B18.6.3 Tensile Strength 70,000 PSI Core Hardness Rockwell B70 Item Type Machine Screws Product Code 5150-24345 SKU 3SSMSF95C100