A screw cap (200) for containers with a threaded neck portion, comprising: - a base portion (210) comprising an upper (212) and a lower surface (214), the upper surface (212) facing towards the pouring opening of a packaging container, on which the screw cap is to be placed; - an annular section (220) raised from the base section (210), the annular section having an inner surface (224) and an outer surface (222); - at least one first threaded section (252), the is disposed on the inner surface (224) of the annular portion, the screw cap (200) comprising at least one engaging portion (240), and wherein the at least one engaging portion is disposed on the top surface (212) of the base portion, characterized in that the at least one Engaging portion (240) is aligned with the initial part (255) of the at least one threaded portion (252).
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