Item Specifications UPC 842176125602 Package Quantity 25 Drive Style External Hex Drive Size 1/2" Inch / Metric Inch Thread Size 5/16"-18 Thread Class Class 2B Coarse / Fine Coarse Threads Per Inch (TPI) 18 Height 17/64" Material Brass Finish Plain Item Type Nuts Nut Type Hex Nut Product Code 5150-7445 SKU 3RNFF905C