Item Specifications UPC 842176192642 Package Quantity 10 Drive Style External Hex Drive Size 7/8" Inch / Metric Inch Thread Size 9/16"-12 Thread Class Class 2B Coarse / Fine Coarse Threads Per Inch (TPI) 12 Height 31/64" Material Steel Material Type Hot Dip Galvanized Steel Grade Grade 2 Finish Hot Dip Galvanized Specification 1 ASME : B18.2.2-2010 Proof Load 68,000 psi Core Hardness Rockwell B68 - C32 Item Type Nuts Nut Type Hex Nut Product Code 5150-7825 SKU 323210