Manufacturer Part Number: NLIX031NTE-025B|Nut Type|Hex Lock NutMaterial|Stainless SteelThread Size (Inch)|5/16-18Thread Size (mm)|Material Grade|18-8Height (Decimal Inch)|Height (mm)|Height (Inch)|1/4Width Across Flats (Decimal Inch)|0.4920 to 0.5020Width Across Flats (Inch)|1/2Width 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)|0.5520Width Across Points (mm)|System Of Measurement|InchFinish Coating|Bright/UncoatedAdditional Information|Product Service Code|UNSPSC Code|