Manufacturer Part Number: B52001663|Nut Type|Heavy Hex Lock NutMaterial|SteelThread Size (Inch)|1-8Thread Size (mm)|Material Grade|2Height (Decimal Inch)|Height (mm)|Height (Inch)|1-9/32Width Across Flats (Decimal Inch)|1.6020 to 1.6320Width Across Flats (Inch)|1-5/8Width Across Flats (mm)|Locking Style|InsertFlange Diameter (Decimal Inch)|Thread Direction|Right HandThread Fit Class|Standards|Insert Material|NylonFastener Standard|UNCMilitary Specification|Does Not Meet Military SpecificationsWidth Across Points (Decimal Inch)|1.7960Width Across Points (mm)|System Of Measurement|InchFinish Coating|ZincAdditional Information|Product Service Code|UNSPSC Code|31161716