Item Specifications UPC 842176125411 Package Quantity 50 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 11/32" Material Stainless Steel 18-8 Finish Plain Item Type Nuts Nut Type Nylon Lock Nut Product Code 5150-15550 SKU 3SNLF905C