These clamps have various application & can be used for Automobiles to pipe fixing. M-8 Clamp has the body made from 2 mm sheet whereas M-10 has body 2.6 mm thickness. The finish is Zinc plated with Yellow or White passivation. The thread on the U bolt are rolled. The range is in sizes given below. CEUC - M8 CEUC - M8 ?mm ?inch 28323638404245485052 1.1/81.1/41.3/81.1/21.9/161.5/81.3/41.7/822.1/16 ?mm ?inch 545860656770758092 2.1/82.1/42.3/82.1/22.5/82.3/433.1/83.5/8