Thread: 1/4"-20 X 2-1/8" LongSize: 1-1/8" I.D. Wide X 3-1/2" LongMaterial: Stainless SteelDesigned For Fastening Products To Pipe, Wood And Other ApplicationsSuitable For Automotive, Plumbing And Other Home And Industrial ApplicationsPlate And Nuts IncludedDo Not Use For Overhead Lifting Or Support Of Human Weight