Item Specifications UPC 842176125329 Package Quantity 100 Drive Style External Hex Drive Size 5/16" Inch / Metric Inch Thread Size #6-40 Thread Class Class 2B Coarse / Fine Fine Threads Per Inch (TPI) 40 Height 11/64" Material Stainless Steel 18-8 Finish Plain Item Type Nuts Nut Type Nylon Lock Nut Product Code 5150-15505 SKU 3SNLF006F