A MicroMount System for providing reliable, self-aligning connections to external fluid-handling or fluid-sensing components is disclosed. At a free end of the spiral arm comprises a protruding block for locating into the base plate and a notch for positioning the block sheet of the lock member, and at a fixing end comprises a position block mounted into a shell. In general, dials are used to control cuttings or circular arcs on the sleeves to operate the swing plate and hooking to a locked object and realize opening and closing of the lock.