PLASTIC PLUG WITH OVERCAP, INCLUDING WRENCH AND METHOD

摘要

A closure for a container opening according to one embodiment comprises a plug including a series of projections and being constructed and arranged to be received within the container opening and an overcap constructed and arrange d for being attached to the plug so as to close off an interior of the plug and create an assembly. The projections being constructed and arranged for interfit with a specialized wrench socket for threadedly advancing the plug into the contain er opening.