Mold for an injection molding machine

A mold for use with an injection molding machine comprising:

• a body having a surface;
• a ring protruding outward from the surface for aligning the body and a platen, the ring including a tapered end;
• wherein the ring defines a right circular cylinder bounded by a body planar surface and a parallel plane spaced from the body planar surface, the ring having a protruding end, the protruding end having subtracted therefrom a generally wedge-shaped portion forming said tapered end and the tapered end having a first region extending furthermost from the surface of said body, the wedge-shaped portion defined by an angled plane which is coincident with the first region of the tapered end of the ring, the first region positioned at a periphery of the ring, the angled plane extending from the first region to a second region positioned at the periphery of the ring, the angled plane subtending at an acute angle from the spaced parallel plane;
• wherein in response to the tapered end of the ring of the mold being positioned in partial alignment with an opening of the platen such that at least a portion of the tapered end is inserted inside of the opening, and a continuous force applied to the mold toward the opening, and the tapered ring being incrementally moved toward a center of the opening, the tapered end guiding the ring into full engagement with the opening.