Thread: 5/16"-18 X 1" LongSize: 1-3/8" I.D. Wide X 2-1/2" LongMaterial: SteelFinish: Zinc PlatedDesigned For Fastening Products To Pipe, Wood And Other ApplicationsSuitable For Automotive, Plumbing And Other Home And Industrial ApplicationsWeatherGuard Exterior Coating For Superior Corrosion ResistancePlate And Nuts IncludedDo Not Use For Overhead Lifting Or Support Of Human Weight