Nickson 4-1/2 Inch Steel Exhaust Clamp - 35424 Part #: 35424 Line: NIC Nickson 4-1/2 Inch Steel Exhaust Clamp Manufacturer's Defect Warranty Diameter (in): 4-1/2 Inch Material: Steel Nut Type: Flange U-Bolt Diameter (in): 3/8 Inch Saddle Hole Shape: Round Show More Show Less