DIMENSIONAL ATTRIBUTES- Diameter (Nominal): 9/16"- Thread Pitch: 12- Diameter (Dimension): 0.5625"- Thread Length (Nominal): 0.547"- Across Flats (Basic): 15/16"- Across Flats (Minimum): 0.909"- Across Flats (Maximum): 0.938"- Height (Basic): 35/64"- Height (Minimum): 0.526"- Height (Maximum): 0.568"PRODUCT ATTRIBUTES- Category: Hex Heavy Nuts- System of Measurement: Inch- Brand: Aspen Fasteners- Drive Style: External Hex Drive- Thread Length: Full Thread- Thread Direction: Right-Hand Thread- Material: Steel- Coating: Zinc Plated- Coating Color: Clear- Origin: Origin Undefined- Standards and Specifications: ASME B18.2.2 and SAE J995NB: Product images are copyrighted artistic representations which may not reflect the product's exact appearance, proportions and/or relative dimensions.