Oetiker©159 Series Adjustable Ear Clamps are manufactured in 304 SS and its choice of engagement positions enable the Oetiker clamp to be adjusted to several nominal diameters. The Multi-position interlock consists of one or two load retaining hooks that enable the ear clamp to withstand tensile loading during closure and a lock tab designed to hold the hooks in their windows prior to closure. Often used for CV Boot Joints.