the invention relates to a closing arrangements on cans and similar containers of the type which has at least one plane end wall of sheet metal with a hole punched out in the end wall . the cut surface of the said punched - out hole may be sealed effectively by a closing arrangement which is designed as a tubular plastic body with flanges projecting from the plastic body . the flanges embrace the edge zone of the hole when the closing arrangement is pressed into the hole , at the same time as the said cut edge of the end wall is pressed so as to form a seal against , or &# 34 ; is embedded in ,&# 34 ; the outside of the tubular plastic body .