An interlocked clamp for an elongated member such as a pipe, tube cable, or the like is provided. The two-part clamp is interlocked on one end and is secured by a fastener to a supporting surface on an opposite end. The two parts are interlocked by a T-shaped distal end of one of the clamp members that is received in an elongated slot formed in the other clamp member. A finger is provided that extends across the slot and secures the T-shaped distal end within the slot.