Manufacturer Part Number: MP39621|Nut Type|Hex Lock NutMaterial|SteelThread Size (Inch)|1/4-20Thread Size (mm)|Material Grade|8Height (Decimal Inch)|Height (mm)|Height (Inch)|5/16Width Across Flats (Decimal Inch)|Width Across Flats (Inch)|7/16Width 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)|Width Across Points (mm)|System Of Measurement|InchFinish Coating|UncoatedAdditional Information|Product Service Code|UNSPSC Code|