Vibration Dampening U-Bolt Vibration-Damping U-Bolt Steel Finish Zinc Plated Thread Size 5/8 In.-11 Thread Length 2 in Inside Length 7 3/4 in Length (In.) 8 29/32 in Inside Width 7 5/32 in Pipe Size (In.) 6 in Characteristics Cushion Design Provides Total Load Distribution Includes Cushion Two Nylon Lock Nuts U-Bolt