DIXON 4-Bolt Clamp, 1-1/2 in Nominal, Minimum Clamp Diameter: 2-12/64 in, Maximum Clamp Diameter: 2-24/64 in, Iron, Zinc-Plated, Locking Style: Bolt, 4-3/32 in L, 3-25/32 in W, 450 deg F, 40 ft-lb Torque