Moulding Inserts are installed during Injection Moulding of any Plastic Box/case/Container, later which helps in fixing the various types of Screws to close or cover that plastic Box/Case/Container, in these moulding inserts. Hence we take utmost care of the Inner Diameter (I/D) and their various threads like M2, M3, M4, M5 M6, M8, M10, etc for the perfect tightening of the Screw in it.