Manufacturer Part Number: HHNI2H250G|Nut Type|Hex Nut Profile|Material|SteelThread Direction|Right HandThread Size (Inch)|2-1/2-4Thread Size (mm)|Material Grade|A194 Grade 2HFinish Coating|Hot-Dipped GalvanizedWidth Across Flats (mm)|Width Across Flats (Inch)|3-7/8Width Across Flats (Decimal Inch)|3.8750Thread Standard|UNCThread Fit Class|Hardness|Military Specification|Does Not Meet Military SpecificationsHeight (Inch)|2-29/64Height (mm)|Height (Decimal Inch)|Fastener Standard|Width Across Points (Decimal Inch)|Width Across Points (mm)|System Of Measurement|InchAdditional Information|Product Service Code|UNSPSC Code|