7/8"-9x4" ASTM F3125 Grade A325 Hot Dipped Galvanized Steel Structural Bolt w/ A563 DH Nut / THREAD CLASS: 2B THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 1.500 INCHES NOMINAL FASTENER LENGTH: 4.000 INCHES NOMINAL HEAD STYLE: C1 HEXAGON HANDLE LENGTH: 4.000 INCHES NOMINAL HANDLE DIAMETER: 0.852 INCHES MINIMUM AND 0.896 INCHES MAXIMUM HEAD HEIGHT: 0.531 INCHES MINIMUM AND 0.563 INCHES MAXIMUM WIDTH BETWEEN FLATS: 1.394 INCHES MINIMUM AND 1.438 INCHES MAXIMUM NOMINAL THREAD DIAMETER: 0.875 INCHES THREAD QUANTITY PER INCH: 9 EXTERNAL THREAD TOLERANCE CLASS: 2B PART NAME ASSIGNED BY CONTROLLING AGENCY: STRUCTURAL BOLT SPECIAL FEATURES: METRIC DIMENSIONS: 22.2 MM X 101.6 MM MATERIAL: STEEL OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: ASTM F3125 ASSN STD SINGLE MATERIAL RESPONSE OVERALL SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: UNC