Item Specifications UPC 842176188546 Package Quantity 25 Drive Style External Hex Inch / Metric Inch Thread Size 5/16"-18 Thread Class Class 2B Coarse / Fine Coarse Threads Per Inch (TPI) 18 Height 3/16" Material Stainless Steel 18-8 Finish Plain Item Type Nuts Product Code 5150-36345 SKU 3SNFJ905C