Abstract: A clamp assembly for securing a band about a flexible pipe includes a plurality of substantially U-shaped members clamping the ends of the band together as they are wrapped about pin members having axial undercuts therein. The pins are so disposed that their undercuts face away from one another, and legs of the clamps have ends complementary in shape with the undercuts so as to force portions of the band lying between the pins and the clamp member into intimate contacting engagement with the undercuts.