Item Specifications UPC 842176127880 Package Quantity 100 Drive Style External Hex Drive Size 1/4" Inch / Metric Inch Thread Size #4-40 Thread Class Class 2B Coarse / Fine Coarse Threads Per Inch (TPI) 40 Height 9/64" Material Brass Finish Plain Item Type Nuts Nut Type Nylon Lock Nut Product Code 5150-15635 SKU 3RNLF004C