PRODUCT SPECIFICATIONSPart #: 0000-120665Fastener Type: Finished Hex Nut - USASize Description: 3/4"-16Diameter/Nominal Size: 3/4"Thickness: 41/64" (0.617-0.665")Wrench Size/Across Flats: 1 1/8" (1.088-1.125")Width Across Corners: 1.240-1.299"Thread Pitch: 16Thread Pitch Type: FineThread Direction: RightSystem of Measurement: InchGrade: 5Material: Medium Carbon SteelFinish: Zinc PlatedDrive Type: External HexUsed with: Bolts/Screws up to Grade 5Average Piece Weight: 0.1180000 lbs.Country of Manufacture: United StatesNuts are almost always used in conjunction with a mating bolt to fasten multiple parts together; kept together by a combination of their threads' friction, a slight stretching of the bolt, and compression of the parts to be held together.