PRODUCT SPECIFICATIONSPart #: 0000-122680Fastener Type: Finished Hex Nut - USASize Description: 7/8"-14Diameter/Nominal Size: 7/8"Thickness: 3/4" (0.724-0.776")Wrench Size/Across Flats: 1 5/16" (1.269-1.312")Width Across Corners: 1.447-1.516"Thread Pitch: 14Thread 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: 0.1755000 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.