Bung plug closure

A bung plug closure (30) for a bung container having a bung plug (31, 60, 90) for being arranged in a bung neck of the bung container and having a seal cap (11) for sealing a plug depression (51, 64, 96) formed in the bung plug (31, 60, 90), said plug depression (51, 64, 96) comprising a receiving area for receiving a resilient engagement body (20) formed on the seal cap (11), and said bung plug (31, 60, 90) comprising tool engagements (33), which are arranged at an inner wall (41) of the plug depression (51, 64, 96) and which are distanced to each other via gaps (34) and which delimit the receiving area using inner surfaces (37) which at least in sections form guide surfaces for axially guiding an annular locking protrusion (21) of the engagement body (20) when inserting the engagement body (20) into the plug depression (51, 64, 96), counter-locking elements (32) for locking the annular locking protrusion (21) of the engagement body (20) to the bung plug (31, 60, 90) being provided in the plug depression (51, 64, 90), said counter-locking elements (32) radially inward protruding over the annular locking protrusion (21) of the engagement body (20) after locking, characterized in that

• the counter-locking elements (32) are arranged in the area of the gaps (34) above an annular frame (35, 61), which is formed outside of the gaps (34) via lower sections (36) of the inner surfaces (37), in such a manner that the locking protrusion (21) is received by the annular frame (35, 61).