Vibration Dampening U-Bolt Vibration-Damping U-Bolt 316 Stainless Steel Finish Plain Thread Size 3/8 In.-16 Thread Length 1 13/64 in Inside Length 2 7/16 in Length (In.) 3 5/32 in Inside Width 2 7/16 in Pipe Size (In.) 1 1/2 in Characteristics Cushion Design Provides Total Load Distribution Includes Cushion Two Nylon Lock Nuts U-Bolt