Manufacturer Part Number: 87NR|Nut Type|Serrated FlangeMaterial|SteelThread Size|7/8-9Flange Diameter (Inch)|Flange Diameter (Decimal Inch)|1.6820Flange Diameter (mm)|Flange Height (Decimal Inch)|1.5130Flange Height|Flange Height|1.5130inFlange Height (mm)|Nut Height (mm)|Nut Height (Decimal Inch)|Material Grade|2Thread Direction|Width Across Flats (Inch)|Width Across Flats (mm)|Width Across Flats (Decimal Inch)|Thread Standard|Thread Fit Class|Standards|Minimum Width Across Flats (Decimal Inch)|1.1660Maximum Width Across Flats (Decimal Inch)|1.1790Minimum Height (Decimal Inch)|1.4440Minimum Flange Diameter (Decimal Inch)|Maximum Flange Diameter (Decimal Inch)|1.6820Hardness|Rockwell HR15N 78-90Fastener Standard|Width Across Points (mm)|System Of Measurement|InchHeight (mm)|Finish Coating|Zinc-PlatedMaximum Height (Inch)|1.5130Height (Inch)|Type|Serrated Flange NutAdditional Information|Product Service Code|UNSPSC Code|