The present invention is a Modular Mounting System used to mount a hollow or solid, elongated or partially elongated member such as, but not limited to, a tube, hose, wiring harness, spindle, baluster, post, shaft or pipe to another hollow or solid, elongated or partially elongated member such as those previously listed where the exterior shape of the short-side cross-section of either member may be of any shape and not simply limited to a circular form. And where the elongated or partially elongated members may or may not run parallel to one another, and where one mounted member supports the other mounted member so that no other mounting is required or provided for.