Item Specifications UPC 842176178288 Package Quantity 5 Drive Style External Hex Drive Size 1-5/16" Inch / Metric Inch Thread Size 7/8"-9 Thread Class Class 2B Coarse / Fine Coarse Threads Per Inch (TPI) 9 Height 3/4" 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 5150-7840 SKU 3GNFF914C