Item Specifications UPC 842176193588 Package Quantity 100 Drive Style External Hex Drive Size 3/16" Inch / Metric Inch Thread Size #3-56 Thread Class Class 2B Coarse / Fine Fine Threads Per Inch (TPI) 56 Height .066" Material Steel Material Type Zinc Plated Steel Grade Grade 2 Finish Electro Zinc & Clear Specification 1 ASME : B18.2.2-2010 Item Type Nuts Nut Type Hex Nut Product Code 5150-15355 SKU 325260