DIXON 4-Bolt Clamp, 1 in Nominal, Minimum Clamp Diameter: 1.53 in, Maximum Clamp Diameter: 1.71 in, Iron, Zinc-Plated, Locking Style: Bolt, 2-7/8 in L, 3-1/8 in W, 450 deg F, 21 ft-lb Torque