Standard U-Bolt, Standard U-Bolt, Stainless Steel, Finish Plain, Thread Size 1/4 In. -20, Thread Length 2 1/2 in, Inside Length 2 3/4 in, Length (In. ) 3 45/64 in, Inside Width 1 9/64 in, Pipe Size (In. ) 1 in, Characteristics UL and ASTM F593 Standards, Includes (4) 316 Stainless Steel Hex Nuts. This item has been restricted from sale in the following state (s): []