Abstract: The present invention relates to a plastics lid of a container with a plastics closure fitted in an aperture of the lid, in particular a combination of the plastics lid (1) of a container and a plastics closure (2, 20) which is composed of a lower closure portion (2) with a closure foot (3), which can be fitted in an aperture of the lid (1), and a screw cap (20) which can be screwed on a pouring spout (17) of the lower closure portion (2), wherein the edge of the lid aperture is provided with an annular circumferential web (4) facing towards the outside of the lid, which is in engagement with the closure foot (3) fitted in the lid aperture, and closure foot (3) is configured U-shaped in cross-section, and grips around the web (4) with both U-arms (5, 6).

Abstract: A plastic screw cap for the closure of a plastic container is provided for the closure of a container made of plastics. The screw cap has a simple configuration similar to corresponding closures for metal containers, but nevertheless ensures stable and sealed seating of the closure on the container opening. The screw cap is provided with an extension, extending radially over the side of the screw cap, which is made from a material which can be welded to the material from which the container lid is made.