The description refers to a tight-head drum having at least one bunghole which can be plugged liquid-tight by means of a bung. The invention is characterized by the fact that the bunghole surrounds a collar machined from the drum material, said collar being fitted with a sealing surface between which and the bung a sealing element can be placed to seal the bunghole tight, that a projecting part is fitted to the collar and to the bung, said projecting part encompassing at least one clamping element, which pretensions the bung in the direction of the sealing surface provided on the collar in order to close the tight-head drum.