Vibration Dampening U-Bolt Vibration-Damping U-Bolt 316 Stainless Steel Finish Plain Thread Size 5/8 In.-11 Thread Length 2 in Inside Length 9 53/64 in Length (In.) 10 23/32 in Inside Width 9 7/32 in Pipe Size (In.) 8 in Characteristics Cushion Design Provides Total Load Distribution Includes Cushion Two Nylon Lock Nuts U-Bolt