Can termination and method of attaching it to its respective can body

A can end (22) comprising a peripheral cover hook (23), a chuck wall (24) dependent from the interior of the cover hook, an outwardly concave annular reinforcing bead (25) extending radially inwards from the chuck wall, and a central panel (26) supported by an inner portion (27) of the reinforcing bead, characterised in that, the chuck wall (24) is inclined to an axis perpendicular to the exterior of the central panel at an angle between 20 DEG and 60 DEG , and the concave cross-sectional radius of the reinforcing bead (25) is less than 0.75 mm.