Vibration Dampening U-Bolt Vibration-Damping U-Bolt 316 Stainless Steel Finish Plain Thread Size 1/2 In.-13 Thread Length 1 39/64 in Inside Length 6 9/16 in Length (In.) 7 9/32 in Inside Width 6 1/16 in Pipe Size (In.) 5 in Characteristics Cushion Design Provides Total Load Distribution Includes Cushion Two Nylon Lock Nuts U-Bolt