Standard U-Bolt Standard U-Bolt 316 Stainless Steel Finish Plain Thread Size 1/4 In.-20 Thread Length 1 1/4 in Inside Length 2 1/2 in Length (In.) 3 1/2 in Inside Width 1 1/4 in Pipe Size (In.) 3/4 in Characteristics UL and ASTM F593 Standards Includes (4) 316 Stainless Steel Hex Nuts